23647254520 has 32 divisors (see below), whose sum is σ = 53215059600. Its totient is φ = 9457348608.

The previous prime is 23647254511. The next prime is 23647254539. The reversal of 23647254520 is 2545274632.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 215887 + ... + 306433.

Almost surely, 2^23647254520 is an apocalyptic number.

23647254520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23647254520 is an abundant number, since it is smaller than the sum of its proper divisors (29567805080).

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

23647254520 is a wasteful number, since it uses less digits than its factorization.

23647254520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97087 (or 97083 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 23647254520 in words is "twenty-three billion, six hundred forty-seven million, two hundred fifty-four thousand, five hundred twenty".