4821181951689 has 32 divisors (see below), whose sum is σ = 7173714787200. Its totient is φ = 3200073143040.

The previous prime is 4821181951681. The next prime is 4821181951723. The reversal of 4821181951689 is 9861591811284.

4821181951689 is a `hidden beast` number, since 4 + 8 + 21 + 1 + 8 + 19 + 516 + 89 = 666.

It is not a de Polignac number, because 4821181951689 - 2³ = 4821181951681 is a prime.

It is a super-2 number, since 2×4821181951689² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4821181951681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112467942 + ... + 112510800.

It is an arithmetic number, because the mean of its divisors is an integer number (224178587100).

Almost surely, 2^{4821181951689} is an apocalyptic number.

It is an amenable number.

4821181951689 is a deficient number, since it is larger than the sum of its proper divisors (2352532835511).

4821181951689 is a wasteful number, since it uses less digits than its factorization.

4821181951689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60982 (or 60976 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 63.

The spelling of 4821181951689 in words is "four trillion, eight hundred twenty-one billion, one hundred eighty-one million, nine hundred fifty-one thousand, six hundred eighty-nine".