12890477020 has 12 divisors (see below), whose sum is σ = 27070001784. Its totient is φ = 5156190800.

The previous prime is 12890476979. The next prime is 12890477023. The reversal of 12890477020 is 2077409821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12890477023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322261906 + ... + 322261945.

It is an arithmetic number, because the mean of its divisors is an integer number (2255833482).

Almost surely, 2^12890477020 is an apocalyptic number.

12890477020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12890477020 is an abundant number, since it is smaller than the sum of its proper divisors (14179524764).

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

12890477020 is a wasteful number, since it uses less digits than its factorization.

12890477020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644523860 (or 644523858 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 12890477020 in words is "twelve billion, eight hundred ninety million, four hundred seventy-seven thousand, twenty".