68539069674 has 20 divisors (see below), whose sum is σ = 153578286114. Its totient is φ = 22846356504.

The previous prime is 68539069667. The next prime is 68539069691. The reversal of 68539069674 is 47696093586.

68539069674 is a `hidden beast` number, since 6 + 8 + 539 + 0 + 6 + 96 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 47613422025 + 20925647649 = 218205^2 + 144657^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 211540177 + ... + 211540500.

Almost surely, 2^68539069674 is an apocalyptic number.

68539069674 is an abundant number, since it is smaller than the sum of its proper divisors (85039216440).

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

68539069674 is a wasteful number, since it uses less digits than its factorization.

68539069674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423080691 (or 423080682 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 63.

The spelling of 68539069674 in words is "sixty-eight billion, five hundred thirty-nine million, sixty-nine thousand, six hundred seventy-four".