12890951788 has 48 divisors (see below), whose sum is σ = 26529995520. Its totient is φ = 5403297600.

The previous prime is 12890951779. The next prime is 12890951789. The reversal of 12890951788 is 88715909821.

It is not an unprimeable number, because it can be changed into a prime (12890951789) 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, 578803 + ... + 600661.

It is an arithmetic number, because the mean of its divisors is an integer number (552708240).

Almost surely, 2^12890951788 is an apocalyptic number.

It is an amenable number.

12890951788 is an abundant number, since it is smaller than the sum of its proper divisors (13639043732).

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

12890951788 is a wasteful number, since it uses less digits than its factorization.

12890951788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22918 (or 22916 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 58.

The spelling of 12890951788 in words is "twelve billion, eight hundred ninety million, nine hundred fifty-one thousand, seven hundred eighty-eight".