68480085969 has 27 divisors (see below), whose sum is σ = 104418516969. Its totient is φ = 43241159880.

The previous prime is 68480085881. The next prime is 68480086009. The reversal of 68480085969 is 96958008486.

The square root of 68480085969 is 261687.

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

68480085969 is a `hidden beast` number, since 68 + 480 + 0 + 8 + 5 + 96 + 9 = 666.

It is not a de Polignac number, because 68480085969 - 2²⁹ = 67943215057 is a prime.

It is a super-2 number, since 2×68480085969² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68480085469) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 14913864 + ... + 14918454.

Almost surely, 2^68480085969 is an apocalyptic number.

68480085969 is the 261687-th square number.

68480085969 is the 130844-th centered octagonal number.

It is an amenable number.

68480085969 is a deficient number, since it is larger than the sum of its proper divisors (35938431000).

68480085969 is an frugal number, since it uses more digits than its factorization.

68480085969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226 (or 4613 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 68480085969 in words is "sixty-eight billion, four hundred eighty million, eighty-five thousand, nine hundred sixty-nine".