68517582782 has 64 divisors (see below), whose sum is σ = 120802000320. Its totient is φ = 28798156800.

The previous prime is 68517582769. The next prime is 68517582821. The reversal of 68517582782 is 28728571586.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33969038 + ... + 33971054.

It is an arithmetic number, because the mean of its divisors is an integer number (1887531255).

Almost surely, 2^68517582782 is an apocalyptic number.

68517582782 is a deficient number, since it is larger than the sum of its proper divisors (52284417538).

68517582782 is a wasteful number, since it uses less digits than its factorization.

68517582782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597.

The product of its digits is 15052800, while the sum is 59.

The spelling of 68517582782 in words is "sixty-eight billion, five hundred seventeen million, five hundred eighty-two thousand, seven hundred eighty-two".