12770405564 has 48 divisors (see below), whose sum is σ = 25941205248. Its totient is φ = 5387707008.

The previous prime is 12770405563. The next prime is 12770405573. The reversal of 12770405564 is 46550407721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12770405561) 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, 647984 + ... + 667400.

It is an arithmetic number, because the mean of its divisors is an integer number (540441776).

Almost surely, 2^12770405564 is an apocalyptic number.

12770405564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12770405564 is an abundant number, since it is smaller than the sum of its proper divisors (13170799684).

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

12770405564 is a wasteful number, since it uses less digits than its factorization.

12770405564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19794 (or 19792 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 12770405564 in words is "twelve billion, seven hundred seventy million, four hundred five thousand, five hundred sixty-four".