13691620000 has 60 divisors (see below), whose sum is σ = 33683488146. Its totient is φ = 5476640000.

The previous prime is 13691619967. The next prime is 13691620031. The reversal of 13691620000 is 2619631.

It can be written as a sum of positive squares in 5 ways, for example, as 774842896 + 12916777104 = 27836^2 + 113652^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 322291 + ... + 362290.

Almost surely, 2^13691620000 is an apocalyptic number.

13691620000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13691620000 is an abundant number, since it is smaller than the sum of its proper divisors (19991868146).

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

13691620000 is an frugal number, since it uses more digits than its factorization.

13691620000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684611 (or 684588 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 13691620000 in words is "thirteen billion, six hundred ninety-one million, six hundred twenty thousand".