68594254578 has 24 divisors (see below), whose sum is σ = 149105004048. Its totient is φ = 22790271672.

The previous prime is 68594254543. The next prime is 68594254627. The reversal of 68594254578 is 87545249586.

68594254578 is a `hidden beast` number, since 6 + 8 + 5 + 9 + 4 + 2 + 54 + 578 = 666.

It is a super-2 number, since 2×68594254578² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6200976 + ... + 6212027.

It is an arithmetic number, because the mean of its divisors is an integer number (6212708502).

Almost surely, 2^68594254578 is an apocalyptic number.

68594254578 is an abundant number, since it is smaller than the sum of its proper divisors (80510749470).

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

68594254578 is a wasteful number, since it uses less digits than its factorization.

68594254578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12413318 (or 12413315 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 63.

The spelling of 68594254578 in words is "sixty-eight billion, five hundred ninety-four million, two hundred fifty-four thousand, five hundred seventy-eight".