68675642972 has 24 divisors (see below), whose sum is σ = 120827095200. Its totient is φ = 34154035776.

The previous prime is 68675642963. The next prime is 68675642977. The reversal of 68675642972 is 27924657686.

It is a super-2 number, since 2×68675642972² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68675642977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607529 + ... + 711647.

It is an arithmetic number, because the mean of its divisors is an integer number (5034462300).

Almost surely, 2^68675642972 is an apocalyptic number.

It is an amenable number.

68675642972 is a deficient number, since it is larger than the sum of its proper divisors (52151452228).

68675642972 is a wasteful number, since it uses less digits than its factorization.

68675642972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105005 (or 105003 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 62.

The spelling of 68675642972 in words is "sixty-eight billion, six hundred seventy-five million, six hundred forty-two thousand, nine hundred seventy-two".