280747760040 has 192 divisors, whose sum is σ = 1053930346560. Its totient is φ = 64056514560.

The previous prime is 280747760021. The next prime is 280747760053. The reversal of 280747760040 is 40067747082.

280747760040 is a `hidden beast` number, since 2 + 80 + 7 + 477 + 60 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2017854 + ... + 2152493.

It is an arithmetic number, because the mean of its divisors is an integer number (5489220555).

Almost surely, 2^280747760040 is an apocalyptic number.

280747760040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280747760040 is an abundant number, since it is smaller than the sum of its proper divisors (773182586520).

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

280747760040 is a wasteful number, since it uses less digits than its factorization.

280747760040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170392 (or 4170385 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 45.

The spelling of 280747760040 in words is "two hundred eighty billion, seven hundred forty-seven million, seven hundred sixty thousand, forty".