68904387177 has 32 divisors (see below), whose sum is σ = 96924401664. Its totient is φ = 43476955200.

The previous prime is 68904387161. The next prime is 68904387191. The reversal of 68904387177 is 77178340986.

It is not a de Polignac number, because 68904387177 - 2⁴ = 68904387161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68904387177.

It is not an unprimeable number, because it can be changed into a prime (68904387107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6975552 + ... + 6985422.

It is an arithmetic number, because the mean of its divisors is an integer number (3028887552).

Almost surely, 2^68904387177 is an apocalyptic number.

It is an amenable number.

68904387177 is a deficient number, since it is larger than the sum of its proper divisors (28020014487).

68904387177 is a wasteful number, since it uses less digits than its factorization.

68904387177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11549.

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 68904387177 in words is "sixty-eight billion, nine hundred four million, three hundred eighty-seven thousand, one hundred seventy-seven".