468155639961 has 27 divisors (see below), whose sum is σ = 685130288661. Its totient is φ = 308046341304.

The previous prime is 468155639863. The next prime is 468155639981. The reversal of 468155639961 is 169936551864.

The square root of 468155639961 is 684219.

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

468155639961 is a `hidden beast` number, since 4 + 6 + 8 + 1 + 5 + 563 + 9 + 9 + 61 = 666.

It is not a de Polignac number, because 468155639961 - 2²⁷ = 468021422233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (468155639981) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 162158460 + ... + 162161346.

Almost surely, 2^468155639961 is an apocalyptic number.

468155639961 is the 684219-th square number.

468155639961 is the 342110-th centered octagonal number.

It is an amenable number.

468155639961 is a deficient number, since it is larger than the sum of its proper divisors (216974648700).

468155639961 is an frugal number, since it uses more digits than its factorization.

468155639961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5938 (or 2969 counting only the distinct ones).

The product of its digits is 41990400, while the sum is 63.

The spelling of 468155639961 in words is "four hundred sixty-eight billion, one hundred fifty-five million, six hundred thirty-nine thousand, nine hundred sixty-one".