68449591676 has 24 divisors (see below), whose sum is σ = 124436723040. Its totient is φ = 32919756800.

The previous prime is 68449591643. The next prime is 68449591739. The reversal of 68449591676 is 67619594486.

It is a super-2 number, since 2×68449591676² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2927621 + ... + 2950908.

It is an arithmetic number, because the mean of its divisors is an integer number (5184863460).

Almost surely, 2^68449591676 is an apocalyptic number.

It is an amenable number.

68449591676 is a deficient number, since it is larger than the sum of its proper divisors (55987131364).

68449591676 is a wasteful number, since it uses less digits than its factorization.

68449591676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878645 (or 5878643 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 65.

The spelling of 68449591676 in words is "sixty-eight billion, four hundred forty-nine million, five hundred ninety-one thousand, six hundred seventy-six".