280523225920 has 112 divisors (see below), whose sum is σ = 788050695168. Its totient is φ = 93076807680.

The previous prime is 280523225897. The next prime is 280523225953. The reversal of 280523225920 is 29522325082.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950457 + ... + 2089336.

Almost surely, 2^280523225920 is an apocalyptic number.

280523225920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280523225920 is an abundant number, since it is smaller than the sum of its proper divisors (507527469248).

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

280523225920 is a wasteful number, since it uses less digits than its factorization.

280523225920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039848 (or 4039838 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 280523225920 in words is "two hundred eighty billion, five hundred twenty-three million, two hundred twenty-five thousand, nine hundred twenty".