13721392812 has 96 divisors (see below), whose sum is σ = 33154313472. Its totient is φ = 4414715136.

The previous prime is 13721392807. The next prime is 13721392813. The reversal of 13721392812 is 21829312731.

It is a super-5 number, since 5×13721392812⁵ (a number of 52 digits) contains 55555 as substring.

It is not an unprimeable number, because it can be changed into a prime (13721392813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11091858 + ... + 11093094.

It is an arithmetic number, because the mean of its divisors is an integer number (345357432).

Almost surely, 2^13721392812 is an apocalyptic number.

13721392812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13721392812 is an abundant number, since it is smaller than the sum of its proper divisors (19432920660).

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

13721392812 is a wasteful number, since it uses less digits than its factorization.

13721392812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1565 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The spelling of 13721392812 in words is "thirteen billion, seven hundred twenty-one million, three hundred ninety-two thousand, eight hundred twelve".