4967857019161 has 9 divisors (see below), whose sum is σ = 5133351334293. Its totient is φ = 4807536700860.

The previous prime is 4967857019149. The next prime is 4967857019173. The reversal of 4967857019161 is 1619107587694.

It is a happy number.

The square root of 4967857019161 is 2228869.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (4967857019149) and next prime (4967857019173).

It is not a de Polignac number, because 4967857019161 - 2³¹ = 4965709535513 is a prime.

It is a super-2 number, since 2×4967857019161² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4967857019093 and 4967857019102.

It is not an unprimeable number, because it can be changed into a prime (4967857019101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69058990 + ... + 69130888.

It is an arithmetic number, because the mean of its divisors is an integer number (570372370477).

Almost surely, 2^{4967857019161} is an apocalyptic number.

4967857019161 is the 2228869-th square number.

4967857019161 is the 1114435-th centered octagonal number.

It is an amenable number.

4967857019161 is a deficient number, since it is larger than the sum of its proper divisors (165494315132).

4967857019161 is an frugal number, since it uses more digits than its factorization.

4967857019161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143860 (or 71930 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 64.

Multiplying 4967857019161 by its sum of digits (64), we get a square (317942849226304 = 17830952²).

The spelling of 4967857019161 in words is "four trillion, nine hundred sixty-seven billion, eight hundred fifty-seven million, nineteen thousand, one hundred sixty-one".