268515357960 has 32 divisors (see below), whose sum is σ = 805546074240. Its totient is φ = 71604095424.

The previous prime is 268515357949. The next prime is 268515357961. The reversal of 268515357960 is 69753515862.

It is a self number, because there is not a number n which added to its sum of digits gives 268515357960.

It is not an unprimeable number, because it can be changed into a prime (268515357961) 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, 1118813872 + ... + 1118814111.

It is an arithmetic number, because the mean of its divisors is an integer number (25173314820).

Almost surely, 2^268515357960 is an apocalyptic number.

268515357960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268515357960 is an abundant number, since it is smaller than the sum of its proper divisors (537030716280).

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

268515357960 is a wasteful number, since it uses less digits than its factorization.

268515357960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237627997 (or 2237627993 counting only the distinct ones).

The product of its (nonzero) digits is 13608000, while the sum is 57.

The spelling of 268515357960 in words is "two hundred sixty-eight billion, five hundred fifteen million, three hundred fifty-seven thousand, nine hundred sixty".