280252720896 has 36 divisors (see below), whose sum is σ = 745880941512. Its totient is φ = 93417573376.

The previous prime is 280252720889. The next prime is 280252720967. The reversal of 280252720896 is 698027252082.

It is a super-2 number, since 2×280252720896² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182455431 + ... + 182456966.

It is an arithmetic number, because the mean of its divisors is an integer number (20718915042).

Almost surely, 2^280252720896 is an apocalyptic number.

It is an amenable number.

280252720896 is an abundant number, since it is smaller than the sum of its proper divisors (465628220616).

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

280252720896 is an equidigital number, since it uses as much as digits as its factorization.

280252720896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364912416 (or 364912402 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 51.

The spelling of 280252720896 in words is "two hundred eighty billion, two hundred fifty-two million, seven hundred twenty thousand, eight hundred ninety-six".