12788906380 has 24 divisors (see below), whose sum is σ = 26859016800. Its totient is φ = 5115121920.

The previous prime is 12788906363. The next prime is 12788906381. The reversal of 12788906380 is 8360988721.

It is a super-2 number, since 2×12788906380² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12788906381) 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, 313396 + ... + 351844.

It is an arithmetic number, because the mean of its divisors is an integer number (1119125700).

Almost surely, 2^12788906380 is an apocalyptic number.

12788906380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12788906380 is an abundant number, since it is smaller than the sum of its proper divisors (14070110420).

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

12788906380 is a wasteful number, since it uses less digits than its factorization.

12788906380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55089 (or 55087 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 12788906380 in words is "twelve billion, seven hundred eighty-eight million, nine hundred six thousand, three hundred eighty".