13129392620 has 24 divisors (see below), whose sum is σ = 27754325088. Its totient is φ = 5216976000.

The previous prime is 13129392607. The next prime is 13129392629. The reversal of 13129392620 is 2629392131.

It is a happy number.

It is a super-2 number, since 2×13129392620² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13129392629) 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, 2170721 + ... + 2176760.

It is an arithmetic number, because the mean of its divisors is an integer number (1156430212).

Almost surely, 2^13129392620 is an apocalyptic number.

13129392620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13129392620 is an abundant number, since it is smaller than the sum of its proper divisors (14624932468).

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

13129392620 is a wasteful number, since it uses less digits than its factorization.

13129392620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347641 (or 4347639 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 38.

The spelling of 13129392620 in words is "thirteen billion, one hundred twenty-nine million, three hundred ninety-two thousand, six hundred twenty".