253932918858 has 12 divisors (see below), whose sum is σ = 550187990898. Its totient is φ = 84644306280.

The previous prime is 253932918781. The next prime is 253932918881. The reversal of 253932918858 is 858819239352.

253932918858 is a `hidden beast` number, since 2 + 539 + 3 + 2 + 9 + 18 + 85 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 156343532409 + 97589386449 = 395403^2 + 312393^2 .

It is a super-2 number, since 2×253932918858² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253932918795 and 253932918804.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7053692173 + ... + 7053692208.

Almost surely, 2^253932918858 is an apocalyptic number.

253932918858 is an abundant number, since it is smaller than the sum of its proper divisors (296255072040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253932918858 is a wasteful number, since it uses less digits than its factorization.

253932918858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14107384389 (or 14107384386 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 63.

The spelling of 253932918858 in words is "two hundred fifty-three billion, nine hundred thirty-two million, nine hundred eighteen thousand, eight hundred fifty-eight".