280659048460 has 48 divisors (see below), whose sum is σ = 680250876480. Its totient is φ = 95273222400.

The previous prime is 280659048443. The next prime is 280659048469. The reversal of 280659048460 is 64840956082.

It is a junction number, because it is equal to n+sod(n) for n = 280659048398 and 280659048407.

It is not an unprimeable number, because it can be changed into a prime (280659048469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9910155 + ... + 9938434.

It is an arithmetic number, because the mean of its divisors is an integer number (14171893260).

Almost surely, 2^280659048460 is an apocalyptic number.

280659048460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280659048460 is an abundant number, since it is smaller than the sum of its proper divisors (399591828020).

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

280659048460 is a wasteful number, since it uses less digits than its factorization.

280659048460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19848706 (or 19848704 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 280659048460 in words is "two hundred eighty billion, six hundred fifty-nine million, forty-eight thousand, four hundred sixty".