12172306634 has 8 divisors (see below), whose sum is σ = 18304452228. Its totient is φ = 6070822560.

The previous prime is 12172306633. The next prime is 12172306691. The reversal of 12172306634 is 43660327121.

It can be written as a sum of positive squares in 2 ways, for example, as 9722551609 + 2449755025 = 98603^2 + 49495^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12172306594 and 12172306603.

It is not an unprimeable number, because it can be changed into a prime (12172306633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7664387 + ... + 7665974.

Almost surely, 2^12172306634 is an apocalyptic number.

12172306634 is a deficient number, since it is larger than the sum of its proper divisors (6132145594).

12172306634 is a wasteful number, since it uses less digits than its factorization.

12172306634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15330760.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 12172306634 in words is "twelve billion, one hundred seventy-two million, three hundred six thousand, six hundred thirty-four".