13934551860 has 72 divisors (see below), whose sum is σ = 42686692776. Its totient is φ = 3679084800.

The previous prime is 13934551859. The next prime is 13934551871. The reversal of 13934551860 is 6815543931.

13934551860 is a `hidden beast` number, since 1 + 3 + 9 + 34 + 551 + 8 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9209089296 + 4725462564 = 95964^2 + 68742^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 365059 + ... + 401418.

It is an arithmetic number, because the mean of its divisors is an integer number (592870733).

Almost surely, 2^13934551860 is an apocalyptic number.

13934551860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13934551860 is an abundant number, since it is smaller than the sum of its proper divisors (28752140916).

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

13934551860 is a wasteful number, since it uses less digits than its factorization.

13934551860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766593 (or 766588 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 13934551860 in words is "thirteen billion, nine hundred thirty-four million, five hundred fifty-one thousand, eight hundred sixty".