725374861137 has 12 divisors (see below), whose sum is σ = 1048262888400. Its totient is φ = 483352840728.

The previous prime is 725374861117. The next prime is 725374861151. The reversal of 725374861137 is 731168473527.

725374861137 is a `hidden beast` number, since 7 + 2 + 537 + 48 + 61 + 1 + 3 + 7 = 666.

It is not a de Polignac number, because 725374861137 - 2¹⁶ = 725374795601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725374861117) 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, 19180063 + ... + 19217844.

It is an arithmetic number, because the mean of its divisors is an integer number (87355240700).

Almost surely, 2^725374861137 is an apocalyptic number.

It is an amenable number.

725374861137 is a deficient number, since it is larger than the sum of its proper divisors (322888027263).

725374861137 is a wasteful number, since it uses less digits than its factorization.

725374861137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38400012 (or 38400009 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The spelling of 725374861137 in words is "seven hundred twenty-five billion, three hundred seventy-four million, eight hundred sixty-one thousand, one hundred thirty-seven".