13910787136 has 63 divisors (see below), whose sum is σ = 28901671813. Its totient is φ = 6642606080.

The previous prime is 13910787133. The next prime is 13910787157. The reversal of 13910787136 is 63178701931.

The square root of 13910787136 is 117944.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12556547136 + 1354240000 = 112056^2 + 36800^2 .

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13910787133) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21701376 + ... + 21702016.

Almost surely, 2^13910787136 is an apocalyptic number.

13910787136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13910787136 is the 117944-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13910787136

13910787136 is an abundant number, since it is smaller than the sum of its proper divisors (14990884677).

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

13910787136 is an frugal number, since it uses more digits than its factorization.

13910787136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 13910787136 in words is "thirteen billion, nine hundred ten million, seven hundred eighty-seven thousand, one hundred thirty-six".