12612358172 has 48 divisors (see below), whose sum is σ = 22884301440. Its totient is φ = 6078067200.

The previous prime is 12612358159. The next prime is 12612358193. The reversal of 12612358172 is 27185321621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7703738 + ... + 7705374.

It is an arithmetic number, because the mean of its divisors is an integer number (476756280).

Almost surely, 2^12612358172 is an apocalyptic number.

It is an amenable number.

12612358172 is a deficient number, since it is larger than the sum of its proper divisors (10271943268).

12612358172 is a wasteful number, since it uses less digits than its factorization.

12612358172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222 (or 2220 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

Adding to 12612358172 its reverse (27185321621), we get a palindrome (39797679793).

The spelling of 12612358172 in words is "twelve billion, six hundred twelve million, three hundred fifty-eight thousand, one hundred seventy-two".