68835375972 has 36 divisors (see below), whose sum is σ = 189818765136. Its totient is φ = 20859204720.

The previous prime is 68835375943. The next prime is 68835376037. The reversal of 68835375972 is 27957353886.

68835375972 is a `hidden beast` number, since 6 + 8 + 8 + 3 + 5 + 37 + 597 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86912958 + ... + 86913749.

It is an arithmetic number, because the mean of its divisors is an integer number (5272743476).

Almost surely, 2^68835375972 is an apocalyptic number.

It is an amenable number.

68835375972 is an abundant number, since it is smaller than the sum of its proper divisors (120983389164).

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

68835375972 is a wasteful number, since it uses less digits than its factorization.

68835375972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173826728 (or 173826723 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The spelling of 68835375972 in words is "sixty-eight billion, eight hundred thirty-five million, three hundred seventy-five thousand, nine hundred seventy-two".