254441656431 has 8 divisors (see below), whose sum is σ = 376950602160. Its totient is φ = 169627770936.

The previous prime is 254441656397. The next prime is 254441656433. The reversal of 254441656431 is 134656144452.

254441656431 is a `hidden beast` number, since 2 + 5 + 4 + 44 + 16 + 564 + 31 = 666.

It is not a de Polignac number, because 254441656431 - 2²² = 254437462127 is a prime.

It is a super-2 number, since 2×254441656431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254441656433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4711882500 + ... + 4711882553.

It is an arithmetic number, because the mean of its divisors is an integer number (47118825270).

Almost surely, 2^254441656431 is an apocalyptic number.

254441656431 is a deficient number, since it is larger than the sum of its proper divisors (122508945729).

254441656431 is an equidigital number, since it uses as much as digits as its factorization.

254441656431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9423765062 (or 9423765056 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The spelling of 254441656431 in words is "two hundred fifty-four billion, four hundred forty-one million, six hundred fifty-six thousand, four hundred thirty-one".