13020719872 has 36 divisors (see below), whose sum is σ = 26073775000. Its totient is φ = 6489520128.

The previous prime is 13020719867. The next prime is 13020719923. The reversal of 13020719872 is 27891702031.

It is a happy number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1122 + ... + 161377.

Almost surely, 2^13020719872 is an apocalyptic number.

It is an amenable number.

13020719872 is an abundant number, since it is smaller than the sum of its proper divisors (13053055128).

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

13020719872 is an equidigital number, since it uses as much as digits as its factorization.

13020719872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162828 (or 162814 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The spelling of 13020719872 in words is "thirteen billion, twenty million, seven hundred nineteen thousand, eight hundred seventy-two".