278232232872 has 64 divisors (see below), whose sum is σ = 760670769600. Its totient is φ = 84106621440.

The previous prime is 278232232829. The next prime is 278232232903.

278232232872 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180423 + ... + 1396374.

It is an arithmetic number, because the mean of its divisors is an integer number (11885480775).

Almost surely, 2^278232232872 is an apocalyptic number.

278232232872 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

278232232872 is an abundant number, since it is smaller than the sum of its proper divisors (482438536728).

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

278232232872 is a wasteful number, since it uses less digits than its factorization.

278232232872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577226 (or 2577222 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 48.

The spelling of 278232232872 in words is "two hundred seventy-eight billion, two hundred thirty-two million, two hundred thirty-two thousand, eight hundred seventy-two".