68195586825 has 72 divisors (see below), whose sum is σ = 126804085408. Its totient is φ = 36332426880.

The previous prime is 68195586821. The next prime is 68195586827. The reversal of 68195586825 is 52868559186.

68195586825 is a `hidden beast` number, since 6 + 8 + 19 + 558 + 68 + 2 + 5 = 666.

It is not a de Polignac number, because 68195586825 - 2² = 68195586821 is a prime.

It is a super-2 number, since 2×68195586825² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68195586821) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6270042 + ... + 6280908.

Almost surely, 2^68195586825 is an apocalyptic number.

It is an amenable number.

68195586825 is a deficient number, since it is larger than the sum of its proper divisors (58608498583).

68195586825 is a wasteful number, since it uses less digits than its factorization.

68195586825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11925 (or 11908 counting only the distinct ones).

The product of its digits is 41472000, while the sum is 63.

The spelling of 68195586825 in words is "sixty-eight billion, one hundred ninety-five million, five hundred eighty-six thousand, eight hundred twenty-five".