280131902464 has 22 divisors (see below), whose sum is σ = 559990240664. Its totient is φ = 140065950720.

The previous prime is 280131902461. The next prime is 280131902483. The reversal of 280131902464 is 464209131082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280131902461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136782132 + ... + 136784179.

Almost surely, 2^280131902464 is an apocalyptic number.

It is an amenable number.

280131902464 is a deficient number, since it is larger than the sum of its proper divisors (279858338200).

280131902464 is an equidigital number, since it uses as much as digits as its factorization.

280131902464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273566331 (or 273566313 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 280131902464 in words is "two hundred eighty billion, one hundred thirty-one million, nine hundred two thousand, four hundred sixty-four".