12445788904 has 8 divisors (see below), whose sum is σ = 23335854210. Its totient is φ = 6222894448.

The previous prime is 12445788877. The next prime is 12445788917. The reversal of 12445788904 is 40988754421.

It can be written as a sum of positive squares in only one way, i.e., 8221048900 + 4224740004 = 90670^2 + 64998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12445788904² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777861799 + ... + 777861814.

Almost surely, 2^12445788904 is an apocalyptic number.

It is an amenable number.

12445788904 is a deficient number, since it is larger than the sum of its proper divisors (10890065306).

12445788904 is a wasteful number, since it uses less digits than its factorization.

12445788904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555723619 (or 1555723615 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 12445788904 in words is "twelve billion, four hundred forty-five million, seven hundred eighty-eight thousand, nine hundred four".