12445274637 has 12 divisors (see below), whose sum is σ = 17977762140. Its totient is φ = 8296270848.

The previous prime is 12445274623. The next prime is 12445274671. The reversal of 12445274637 is 73647254421.

12445274637 is a `hidden beast` number, since 1 + 2 + 4 + 4 + 5 + 2 + 7 + 4 + 637 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6511037481 + 5934237156 = 80691^2 + 77034^2 .

It is not a de Polignac number, because 12445274637 - 2⁶ = 12445274573 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12445274592 and 12445274601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445274137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118093 + ... + 197069.

It is an arithmetic number, because the mean of its divisors is an integer number (1498146845).

Almost surely, 2^12445274637 is an apocalyptic number.

It is an amenable number.

12445274637 is a deficient number, since it is larger than the sum of its proper divisors (5532487503).

12445274637 is a wasteful number, since it uses less digits than its factorization.

12445274637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96492 (or 96489 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The spelling of 12445274637 in words is "twelve billion, four hundred forty-five million, two hundred seventy-four thousand, six hundred thirty-seven".