12605991794 has 16 divisors (see below), whose sum is σ = 20652087456. Its totient is φ = 5723301600.

The previous prime is 12605991779. The next prime is 12605991857. The reversal of 12605991794 is 49719950621.

It is a super-2 number, since 2×12605991794² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315452 + ... + 353159.

It is an arithmetic number, because the mean of its divisors is an integer number (1290755466).

Almost surely, 2^12605991794 is an apocalyptic number.

12605991794 is a deficient number, since it is larger than the sum of its proper divisors (8046095662).

12605991794 is a wasteful number, since it uses less digits than its factorization.

12605991794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669481.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The spelling of 12605991794 in words is "twelve billion, six hundred five million, nine hundred ninety-one thousand, seven hundred ninety-four".