23564363262540 has 24 divisors (see below), whose sum is σ = 65980217135280. Its totient is φ = 6283830203328.

The previous prime is 23564363262511. The next prime is 23564363262547. The reversal of 23564363262540 is 4526236346532.

It is not an unprimeable number, because it can be changed into a prime (23564363262547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196369693795 + ... + 196369693914.

It is an arithmetic number, because the mean of its divisors is an integer number (2749175713970).

Almost surely, 2^{23564363262540} is an apocalyptic number.

23564363262540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23564363262540 is an abundant number, since it is smaller than the sum of its proper divisors (42415853872740).

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

23564363262540 is a wasteful number, since it uses less digits than its factorization.

23564363262540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392739387721 (or 392739387719 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 51.

The spelling of 23564363262540 in words is "twenty-three trillion, five hundred sixty-four billion, three hundred sixty-three million, two hundred sixty-two thousand, five hundred forty".