23515125389388 has 36 divisors (see below), whose sum is σ = 62937541485000. Its totient is φ = 7377294239616.

The previous prime is 23515125389381. The next prime is 23515125389471. The reversal of 23515125389388 is 88398352151532.

23515125389388 is a `hidden beast` number, since 2 + 3 + 5 + 1 + 5 + 1 + 2 + 538 + 93 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×23515125389388² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23515125389381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19211703138 + ... + 19211704361.

It is an arithmetic number, because the mean of its divisors is an integer number (1748265041250).

Almost surely, 2^{23515125389388} is an apocalyptic number.

It is an amenable number.

23515125389388 is an abundant number, since it is smaller than the sum of its proper divisors (39422416095612).

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

23515125389388 is a wasteful number, since it uses less digits than its factorization.

23515125389388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38423407526 (or 38423407521 counting only the distinct ones).

The product of its digits is 62208000, while the sum is 63.

The spelling of 23515125389388 in words is "twenty-three trillion, five hundred fifteen billion, one hundred twenty-five million, three hundred eighty-nine thousand, three hundred eighty-eight".