13939620237 has 80 divisors (see below), whose sum is σ = 23272539840. Its totient is φ = 8263337472.

The previous prime is 13939620193. The next prime is 13939620263. The reversal of 13939620237 is 73202693931.

13939620237 is a `hidden beast` number, since 1 + 3 + 9 + 396 + 20 + 237 = 666.

It is not a de Polignac number, because 13939620237 - 2²⁷ = 13805402509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13939620192 and 13939620201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13939620137) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 17711958 + ... + 17712744.

It is an arithmetic number, because the mean of its divisors is an integer number (290906748).

Almost surely, 2^13939620237 is an apocalyptic number.

13939620237 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13939620237 is a deficient number, since it is larger than the sum of its proper divisors (9332919603).

13939620237 is a wasteful number, since it uses less digits than its factorization.

13939620237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512 (or 1503 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The spelling of 13939620237 in words is "thirteen billion, nine hundred thirty-nine million, six hundred twenty thousand, two hundred thirty-seven".