280977352172 has 12 divisors (see below), whose sum is σ = 536411308776. Its totient is φ = 127716978240.

The previous prime is 280977352169. The next prime is 280977352181. The reversal of 280977352172 is 271253779082.

It is a super-2 number, since 2×280977352172² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3192924413 + ... + 3192924500.

It is an arithmetic number, because the mean of its divisors is an integer number (44700942398).

Almost surely, 2^280977352172 is an apocalyptic number.

280977352172 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

280977352172 is a deficient number, since it is larger than the sum of its proper divisors (255433956604).

280977352172 is a wasteful number, since it uses less digits than its factorization.

280977352172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6385848928 (or 6385848926 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 280977352172 in words is "two hundred eighty billion, nine hundred seventy-seven million, three hundred fifty-two thousand, one hundred seventy-two".