68734587684 has 96 divisors (see below), whose sum is σ = 195729408000. Its totient is φ = 18349591680.

The previous prime is 68734587617. The next prime is 68734587721. The reversal of 68734587684 is 48678543786.

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, 379584 + ... + 530615.

It is an arithmetic number, because the mean of its divisors is an integer number (2038848000).

Almost surely, 2^68734587684 is an apocalyptic number.

It is an amenable number.

68734587684 is an abundant number, since it is smaller than the sum of its proper divisors (126994820316).

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

68734587684 is a wasteful number, since it uses less digits than its factorization.

68734587684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910273 (or 910271 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 66.

The spelling of 68734587684 in words is "sixty-eight billion, seven hundred thirty-four million, five hundred eighty-seven thousand, six hundred eighty-four".