13960939680 has 120 divisors (see below), whose sum is σ = 49270528692. Its totient is φ = 3722913792.

The previous prime is 13960939679. The next prime is 13960939687. The reversal of 13960939680 is 8693906931.

13960939680 is a `hidden beast` number, since 1 + 396 + 0 + 93 + 96 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13495933584 + 465006096 = 116172^2 + 21564^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (13960939687) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 525657 + ... + 551576.

Almost surely, 2^13960939680 is an apocalyptic number.

13960939680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13960939680 is an abundant number, since it is smaller than the sum of its proper divisors (35309589012).

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

13960939680 is a wasteful number, since it uses less digits than its factorization.

13960939680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077260 (or 1077243 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 13960939680 in words is "thirteen billion, nine hundred sixty million, nine hundred thirty-nine thousand, six hundred eighty".