4200787161 has 6 divisors (see below), whose sum is σ = 6067803690. Its totient is φ = 2800524768.

The previous prime is 4200787139. The next prime is 4200787169. The reversal of 4200787161 is 1617870024.

4200787161 is a `hidden beast` number, since 420 + 0 + 78 + 7 + 161 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4149807561 + 50979600 = 64419^2 + 7140^2 .

It is not a de Polignac number, because 4200787161 - 2⁷ = 4200787033 is a prime.

It is a super-2 number, since 2×4200787161² = 35293225544044879842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4200787169) 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 5 ways as a sum of consecutive naturals, for example, 233377056 + ... + 233377073.

It is an arithmetic number, because the mean of its divisors is an integer number (1011300615).

Almost surely, 2^4200787161 is an apocalyptic number.

It is an amenable number.

4200787161 is a deficient number, since it is larger than the sum of its proper divisors (1867016529).

4200787161 is a wasteful number, since it uses less digits than its factorization.

4200787161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466754135 (or 466754132 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 4200787161 is about 64813.4797785152. The cubic root of 4200787161 is about 1613.5294356096.

The spelling of 4200787161 in words is "four billion, two hundred million, seven hundred eighty-seven thousand, one hundred sixty-one".