68531361725 has 24 divisors (see below), whose sum is σ = 90051900000. Its totient is φ = 51590917440.

The previous prime is 68531361719. The next prime is 68531361739. The reversal of 68531361725 is 52716313586.

It is not a de Polignac number, because 68531361725 - 2⁴ = 68531361709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68531361725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 413375 + ... + 554924.

It is an arithmetic number, because the mean of its divisors is an integer number (3752162500).

Almost surely, 2^68531361725 is an apocalyptic number.

It is an amenable number.

68531361725 is a deficient number, since it is larger than the sum of its proper divisors (21520538275).

68531361725 is a wasteful number, since it uses less digits than its factorization.

68531361725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968477 (or 968472 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The spelling of 68531361725 in words is "sixty-eight billion, five hundred thirty-one million, three hundred sixty-one thousand, seven hundred twenty-five".