13720888902 has 64 divisors (see below), whose sum is σ = 31804416000. Its totient is φ = 3865099680.

The previous prime is 13720888897. The next prime is 13720888919. The reversal of 13720888902 is 20988802731.

It is a super-2 number, since 2×13720888902² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2688349 + ... + 2693447.

It is an arithmetic number, because the mean of its divisors is an integer number (496944000).

Almost surely, 2^13720888902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13720888902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15902208000).

13720888902 is an abundant number, since it is smaller than the sum of its proper divisors (18083527098).

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

13720888902 is a wasteful number, since it uses less digits than its factorization.

13720888902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6001.

The product of its (nonzero) digits is 387072, while the sum is 48.

The spelling of 13720888902 in words is "thirteen billion, seven hundred twenty million, eight hundred eighty-eight thousand, nine hundred two".