13372840881 has 21 divisors (see below), whose sum is σ = 20054771689. Its totient is φ = 8913145716.

The previous prime is 13372840823. The next prime is 13372840931. The reversal of 13372840881 is 18804827331.

The square root of 13372840881 is 115641.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13372840881 - 2⁷ = 13372840753 is a prime.

It is a super-2 number, since 2×13372840881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13372840801) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 3120166 + ... + 3124448.

Almost surely, 2^13372840881 is an apocalyptic number.

13372840881 is the 115641-st square number.

13372840881 is the 57821-st centered octagonal number.

It is an amenable number.

13372840881 is a deficient number, since it is larger than the sum of its proper divisors (6681930808).

13372840881 is an frugal number, since it uses more digits than its factorization.

13372840881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8584 (or 4286 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 13372840881 in words is "thirteen billion, three hundred seventy-two million, eight hundred forty thousand, eight hundred eighty-one".