23507287280 has 20 divisors (see below), whose sum is σ = 54654443112. Its totient is φ = 9402914880.

The previous prime is 23507287201. The next prime is 23507287337. The reversal of 23507287280 is 8278270532.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 146920466 + ... + 146920625.

Almost surely, 2^23507287280 is an apocalyptic number.

23507287280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23507287280 is an abundant number, since it is smaller than the sum of its proper divisors (31147155832).

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

23507287280 is a wasteful number, since it uses less digits than its factorization.

23507287280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293841104 (or 293841098 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 23507287280 in words is "twenty-three billion, five hundred seven million, two hundred eighty-seven thousand, two hundred eighty".