12634458722 has 6 divisors (see below), whose sum is σ = 18951926529. Its totient is φ = 6317149880.

The previous prime is 12634458719. The next prime is 12634458743. The reversal of 12634458722 is 22785443621.

It can be written as a sum of positive squares in 2 ways, for example, as 12633535201 + 923521 = 112399^2 + 961^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=79481.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 119222 + ... + 198702.

Almost surely, 2^12634458722 is an apocalyptic number.

12634458722 is a deficient number, since it is larger than the sum of its proper divisors (6317467807).

12634458722 is an frugal number, since it uses more digits than its factorization.

12634458722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158964 (or 79483 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The spelling of 12634458722 in words is "twelve billion, six hundred thirty-four million, four hundred fifty-eight thousand, seven hundred twenty-two".