68737174478 has 32 divisors (see below), whose sum is σ = 122037331968. Its totient is φ = 28425902400.

The previous prime is 68737174447. The next prime is 68737174481. The reversal of 68737174478 is 87447173786.

It is a self number, because there is not a number n which added to its sum of digits gives 68737174478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 688943 + ... + 782378.

It is an arithmetic number, because the mean of its divisors is an integer number (3813666624).

Almost surely, 2^68737174478 is an apocalyptic number.

68737174478 is a deficient number, since it is larger than the sum of its proper divisors (53300157490).

68737174478 is a wasteful number, since it uses less digits than its factorization.

68737174478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471448.

The product of its digits is 44255232, while the sum is 62.

The spelling of 68737174478 in words is "sixty-eight billion, seven hundred thirty-seven million, one hundred seventy-four thousand, four hundred seventy-eight".