268806926820 has 24 divisors (see below), whose sum is σ = 752659395264. Its totient is φ = 71681847136.

The previous prime is 268806926803. The next prime is 268806926879. The reversal of 268806926820 is 28629608862.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240057664 + ... + 2240057783.

It is an arithmetic number, because the mean of its divisors is an integer number (31360808136).

Almost surely, 2^268806926820 is an apocalyptic number.

268806926820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268806926820 is an abundant number, since it is smaller than the sum of its proper divisors (483852468444).

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

268806926820 is a wasteful number, since it uses less digits than its factorization.

268806926820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4480115459 (or 4480115457 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 57.

The spelling of 268806926820 in words is "two hundred sixty-eight billion, eight hundred six million, nine hundred twenty-six thousand, eight hundred twenty".