13988373525 has 36 divisors (see below), whose sum is σ = 28633981792. Its totient is φ = 6394684320.

The previous prime is 13988373521. The next prime is 13988373527. The reversal of 13988373525 is 52537388931.

13988373525 is a `hidden beast` number, since 1 + 3 + 9 + 88 + 37 + 3 + 525 = 666.

It is not a de Polignac number, because 13988373525 - 2² = 13988373521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13988373521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4439179 + ... + 4442328.

Almost surely, 2^13988373525 is an apocalyptic number.

13988373525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13988373525 is an abundant number, since it is smaller than the sum of its proper divisors (14645608267).

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

13988373525 is a wasteful number, since it uses less digits than its factorization.

13988373525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881530 (or 8881522 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 13988373525 in words is "thirteen billion, nine hundred eighty-eight million, three hundred seventy-three thousand, five hundred twenty-five".