71031368925 has 36 divisors (see below), whose sum is σ = 138790994784. Its totient is φ = 34439450400.

The previous prime is 71031368867. The next prime is 71031368939. The reversal of 71031368925 is 52986313017.

It is not a de Polignac number, because 71031368925 - 2⁶ = 71031368861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 14347297 + ... + 14352246.

Almost surely, 2^71031368925 is an apocalyptic number.

71031368925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

71031368925 is a deficient number, since it is larger than the sum of its proper divisors (67759625859).

71031368925 is a wasteful number, since it uses less digits than its factorization.

71031368925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28699570 (or 28699562 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 71031368925 in words is "seventy-one billion, thirty-one million, three hundred sixty-eight thousand, nine hundred twenty-five".