13431570725 has 96 divisors (see below), whose sum is σ = 18863078400. Its totient is φ = 9443174400.

The previous prime is 13431570721. The next prime is 13431570791. The reversal of 13431570725 is 52707513431.

It is a happy number.

It is not a de Polignac number, because 13431570725 - 2² = 13431570721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431570721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 48489287 + ... + 48489563.

It is an arithmetic number, because the mean of its divisors is an integer number (196490400).

Almost surely, 2^13431570725 is an apocalyptic number.

It is an amenable number.

13431570725 is a deficient number, since it is larger than the sum of its proper divisors (5431507675).

13431570725 is a wasteful number, since it uses less digits than its factorization.

13431570725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 13431570725 in words is "thirteen billion, four hundred thirty-one million, five hundred seventy thousand, seven hundred twenty-five".