12907980881 has 8 divisors (see below), whose sum is σ = 14138559720. Its totient is φ = 11729767168.

The previous prime is 12907980853. The next prime is 12907980907. The reversal of 12907980881 is 18808970921.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3432905281 + 9475075600 = 58591^2 + 97340^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12907980881 - 2¹⁴ = 12907964497 is a prime.

It is a super-2 number, since 2×12907980881² (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 (12907980821) 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, 13090766 + ... + 13091751.

It is an arithmetic number, because the mean of its divisors is an integer number (1767319965).

Almost surely, 2^12907980881 is an apocalyptic number.

It is an amenable number.

12907980881 is a deficient number, since it is larger than the sum of its proper divisors (1230578839).

12907980881 is a wasteful number, since it uses less digits than its factorization.

12907980881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26182563.

The product of its (nonzero) digits is 580608, while the sum is 53.

The spelling of 12907980881 in words is "twelve billion, nine hundred seven million, nine hundred eighty thousand, eight hundred eighty-one".