68499021177 has 24 divisors (see below), whose sum is σ = 102382862400. Its totient is φ = 44079261408.

The previous prime is 68499021167. The next prime is 68499021251. The reversal of 68499021177 is 77112099486.

68499021177 is a `hidden beast` number, since 68 + 499 + 0 + 21 + 1 + 77 = 666.

It is not a de Polignac number, because 68499021177 - 2²³ = 68490632569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68499021167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 974274 + ... + 1042212.

It is an arithmetic number, because the mean of its divisors is an integer number (4265952600).

Almost surely, 2^68499021177 is an apocalyptic number.

It is an amenable number.

68499021177 is a deficient number, since it is larger than the sum of its proper divisors (33883841223).

68499021177 is a wasteful number, since it uses less digits than its factorization.

68499021177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71837 (or 71834 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 68499021177 in words is "sixty-eight billion, four hundred ninety-nine million, twenty-one thousand, one hundred seventy-seven".