13139381136 has 40 divisors (see below), whose sum is σ = 38792459584. Its totient is φ = 3754108800.

The previous prime is 13139381113. The next prime is 13139381137. The reversal of 13139381136 is 63118393131.

It is a junction number, because it is equal to n+sod(n) for n = 13139381094 and 13139381103.

It is not an unprimeable number, because it can be changed into a prime (13139381137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19552315 + ... + 19552986.

Almost surely, 2^13139381136 is an apocalyptic number.

13139381136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13139381136 is an abundant number, since it is smaller than the sum of its proper divisors (25653078448).

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

13139381136 is a wasteful number, since it uses less digits than its factorization.

13139381136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39105319 (or 39105313 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The spelling of 13139381136 in words is "thirteen billion, one hundred thirty-nine million, three hundred eighty-one thousand, one hundred thirty-six".