13691954560 has 64 divisors (see below), whose sum is σ = 32750237520. Its totient is φ = 5473785856.

The previous prime is 13691954539. The next prime is 13691954597. The reversal of 13691954560 is 6545919631.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446162 + ... + 1455598.

Almost surely, 2^13691954560 is an apocalyptic number.

13691954560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13691954560 is an abundant number, since it is smaller than the sum of its proper divisors (19058282960).

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

13691954560 is an equidigital number, since it uses as much as digits as its factorization.

13691954560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11723 (or 11711 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 49.

The spelling of 13691954560 in words is "thirteen billion, six hundred ninety-one million, nine hundred fifty-four thousand, five hundred sixty".