12900026881 has 16 divisors (see below), whose sum is σ = 14963155200. Its totient is φ = 10892337408.

The previous prime is 12900026833. The next prime is 12900026897. The reversal of 12900026881 is 18862000921.

It is a cyclic number.

It is not a de Polignac number, because 12900026881 - 2¹³ = 12900018689 is a prime.

It is a super-2 number, since 2×12900026881² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12900026881.

It is not an unprimeable number, because it can be changed into a prime (12900026081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413685 + ... + 443773.

It is an arithmetic number, because the mean of its divisors is an integer number (935197200).

Almost surely, 2^12900026881 is an apocalyptic number.

It is an amenable number.

12900026881 is a deficient number, since it is larger than the sum of its proper divisors (2063128319).

12900026881 is an equidigital number, since it uses as much as digits as its factorization.

12900026881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31008.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 12900026881 in words is "twelve billion, nine hundred million, twenty-six thousand, eight hundred eighty-one".