13987503792 has 70 divisors (see below), whose sum is σ = 40632629132. Its totient is φ = 4662497376.

The previous prime is 13987503781. The next prime is 13987503811. The reversal of 13987503792 is 29730578931.

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

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 587938 + ... + 611265.

Almost surely, 2^13987503792 is an apocalyptic number.

13987503792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13987503792 is an abundant number, since it is smaller than the sum of its proper divisors (26645125340).

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

13987503792 is an equidigital number, since it uses as much as digits as its factorization.

13987503792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199229 (or 1199208 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The spelling of 13987503792 in words is "thirteen billion, nine hundred eighty-seven million, five hundred three thousand, seven hundred ninety-two".