68488967766 has 32 divisors (see below), whose sum is σ = 144748402560. Its totient is φ = 21543929856.

The previous prime is 68488967759. The next prime is 68488967819. The reversal of 68488967766 is 66776988486.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1139536 + ... + 1198131.

It is an arithmetic number, because the mean of its divisors is an integer number (4523387580).

Almost surely, 2^68488967766 is an apocalyptic number.

68488967766 is an abundant number, since it is smaller than the sum of its proper divisors (76259434794).

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

68488967766 is a wasteful number, since it uses less digits than its factorization.

68488967766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2337948.

The product of its digits is 1170505728, while the sum is 75.

The spelling of 68488967766 in words is "sixty-eight billion, four hundred eighty-eight million, nine hundred sixty-seven thousand, seven hundred sixty-six".