268117065820 has 24 divisors (see below), whose sum is σ = 563093965728. Its totient is φ = 107237659200.

The previous prime is 268117065809. The next prime is 268117065833. The reversal of 268117065820 is 28560711862.

It is a congruent number.

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, 330616 + ... + 803455.

It is an arithmetic number, because the mean of its divisors is an integer number (23462248572).

Almost surely, 2^268117065820 is an apocalyptic number.

268117065820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268117065820 is an abundant number, since it is smaller than the sum of its proper divisors (294976899908).

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

268117065820 is a wasteful number, since it uses less digits than its factorization.

268117065820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145901 (or 1145899 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 268117065820 in words is "two hundred sixty-eight billion, one hundred seventeen million, sixty-five thousand, eight hundred twenty".