68356736574 has 32 divisors (see below), whose sum is σ = 156261830400. Its totient is φ = 19528263552.

The previous prime is 68356736531. The next prime is 68356736587. The reversal of 68356736574 is 47563765386.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 298102 + ... + 474950.

It is an arithmetic number, because the mean of its divisors is an integer number (4883182200).

Almost surely, 2^68356736574 is an apocalyptic number.

68356736574 is an abundant number, since it is smaller than the sum of its proper divisors (87905093826).

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

68356736574 is a wasteful number, since it uses less digits than its factorization.

68356736574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186064.

The product of its digits is 76204800, while the sum is 60.

The spelling of 68356736574 in words is "sixty-eight billion, three hundred fifty-six million, seven hundred thirty-six thousand, five hundred seventy-four".