68197509084 has 24 divisors (see below), whose sum is σ = 159516597520. Its totient is φ = 22676920704.

The previous prime is 68197509071. The next prime is 68197509097. The reversal of 68197509084 is 48090579186.

It is an interprime number because it is at equal distance from previous prime (68197509071) and next prime (68197509097).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6942679 + ... + 6952494.

Almost surely, 2^68197509084 is an apocalyptic number.

It is an amenable number.

68197509084 is an abundant number, since it is smaller than the sum of its proper divisors (91319088436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68197509084 is a wasteful number, since it uses less digits than its factorization.

68197509084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13895589 (or 13895587 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 68197509084 in words is "sixty-eight billion, one hundred ninety-seven million, five hundred nine thousand, eighty-four".