68962525209 has 6 divisors (see below), whose sum is σ = 99612536426. Its totient is φ = 45975016800.

The previous prime is 68962525201. The next prime is 68962525241. The reversal of 68962525209 is 90252526986.

68962525209 is a `hidden beast` number, since 6 + 8 + 9 + 62 + 52 + 520 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 67589600400 + 1372924809 = 259980^2 + 37053^2 .

It is not a de Polignac number, because 68962525209 - 2³ = 68962525201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68962525201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3831251392 + ... + 3831251409.

Almost surely, 2^68962525209 is an apocalyptic number.

It is an amenable number.

68962525209 is a deficient number, since it is larger than the sum of its proper divisors (30650011217).

68962525209 is a wasteful number, since it uses less digits than its factorization.

68962525209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7662502807 (or 7662502804 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 54.

The spelling of 68962525209 in words is "sixty-eight billion, nine hundred sixty-two million, five hundred twenty-five thousand, two hundred nine".