12173472788 has 6 divisors (see below), whose sum is σ = 21303577386. Its totient is φ = 6086736392.

The previous prime is 12173472769. The next prime is 12173472793. The reversal of 12173472788 is 88727437121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8706382864 + 3467089924 = 93308^2 + 58882^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1521684095 + ... + 1521684102.

It is an arithmetic number, because the mean of its divisors is an integer number (3550596231).

Almost surely, 2^12173472788 is an apocalyptic number.

It is an amenable number.

12173472788 is a deficient number, since it is larger than the sum of its proper divisors (9130104598).

12173472788 is a wasteful number, since it uses less digits than its factorization.

12173472788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043368201 (or 3043368199 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 50.

The spelling of 12173472788 in words is "twelve billion, one hundred seventy-three million, four hundred seventy-two thousand, seven hundred eighty-eight".