280868914964 has 24 divisors (see below), whose sum is σ = 540061888800. Its totient is φ = 126749213280.

The previous prime is 280868914961. The next prime is 280868915039. The reversal of 280868914964 is 469419868082.

It is a self number, because there is not a number n which added to its sum of digits gives 280868914964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280868914961) 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, 22955699 + ... + 22967930.

It is an arithmetic number, because the mean of its divisors is an integer number (22502578700).

Almost surely, 2^280868914964 is an apocalyptic number.

It is an amenable number.

280868914964 is a deficient number, since it is larger than the sum of its proper divisors (259192973836).

280868914964 is a wasteful number, since it uses less digits than its factorization.

280868914964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45923783 (or 45923781 counting only the distinct ones).

The product of its (nonzero) digits is 47775744, while the sum is 65.

The spelling of 280868914964 in words is "two hundred eighty billion, eight hundred sixty-eight million, nine hundred fourteen thousand, nine hundred sixty-four".