12137451725 has 24 divisors (see below), whose sum is σ = 17314451328. Its totient is φ = 8267688000.

The previous prime is 12137451721. The next prime is 12137451737. The reversal of 12137451725 is 52715473121.

It is not a de Polignac number, because 12137451725 - 2² = 12137451721 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12137451721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203234 + ... + 256083.

It is an arithmetic number, because the mean of its divisors is an integer number (721435472).

Almost surely, 2^12137451725 is an apocalyptic number.

It is an amenable number.

12137451725 is a deficient number, since it is larger than the sum of its proper divisors (5176999603).

12137451725 is a wasteful number, since it uses less digits than its factorization.

12137451725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459485 (or 459480 counting only the distinct ones).

The product of its digits is 58800, while the sum is 38.

The spelling of 12137451725 in words is "twelve billion, one hundred thirty-seven million, four hundred fifty-one thousand, seven hundred twenty-five".