68366835443776 has 63 divisors (see below), whose sum is σ = 138280551999303. Its totient is φ = 33536727744000.

The previous prime is 68366835443761. The next prime is 68366835443831. The reversal of 68366835443776 is 67734453866386.

The square root of 68366835443776 is 8268424.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4741070760000 + 63625764683776 = 2177400^2 + 7976576^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3505802026 + ... + 3505821526.

Almost surely, 2^{68366835443776} is an apocalyptic number.

68366835443776 is the 8268424-th square number.

68366835443776 is the 5229411-st centered pentagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68366835443776

68366835443776 is an abundant number, since it is smaller than the sum of its proper divisors (69913716555527).

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

68366835443776 is an frugal number, since it uses more digits than its factorization.

68366835443776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39120 (or 19556 counting only the distinct ones).

The product of its digits is 8778792960, while the sum is 76.

The spelling of 68366835443776 in words is "sixty-eight trillion, three hundred sixty-six billion, eight hundred thirty-five million, four hundred forty-three thousand, seven hundred seventy-six".