68901840279584 has 48 divisors (see below), whose sum is σ = 146929574742552. Its totient is φ = 31617029388288.

The previous prime is 68901840279557. The next prime is 68901840279617. The reversal of 68901840279584 is 48597204810986.

It can be written as a sum of positive squares in 4 ways, for example, as 44143533283600 + 24758306995984 = 6644060^2 + 4975772^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478625789 + ... + 478769724.

Almost surely, 2^{68901840279584} is an apocalyptic number.

It is an amenable number.

68901840279584 is an abundant number, since it is smaller than the sum of its proper divisors (78027734462968).

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

68901840279584 is a wasteful number, since it uses less digits than its factorization.

68901840279584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957395709 (or 957395701 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 71.

The spelling of 68901840279584 in words is "sixty-eight trillion, nine hundred one billion, eight hundred forty million, two hundred seventy-nine thousand, five hundred eighty-four".