23897940426 has 48 divisors (see below), whose sum is σ = 52703196000. Its totient is φ = 7824462624.

The previous prime is 23897940379. The next prime is 23897940427. The reversal of 23897940426 is 62404979832.

It is a super-2 number, since 2×23897940426² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23897940427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392505 + ... + 449283.

It is an arithmetic number, because the mean of its divisors is an integer number (1097983250).

Almost surely, 2^23897940426 is an apocalyptic number.

23897940426 is an abundant number, since it is smaller than the sum of its proper divisors (28805255574).

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

23897940426 is a wasteful number, since it uses less digits than its factorization.

23897940426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57203 (or 57200 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 23897940426 in words is "twenty-three billion, eight hundred ninety-seven million, nine hundred forty thousand, four hundred twenty-six".