68561795676 has 48 divisors (see below), whose sum is σ = 175165014528. Its totient is φ = 20699625600.

The previous prime is 68561795669. The next prime is 68561795683. The reversal of 68561795676 is 67659716586.

It is an interprime number because it is at equal distance from previous prime (68561795669) and next prime (68561795683).

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 922545 + ... + 994088.

It is an arithmetic number, because the mean of its divisors is an integer number (3649271136).

Almost surely, 2^68561795676 is an apocalyptic number.

68561795676 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

68561795676 is an abundant number, since it is smaller than the sum of its proper divisors (106603218852).

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

68561795676 is a wasteful number, since it uses less digits than its factorization.

68561795676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916922 (or 1916920 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 66.

The spelling of 68561795676 in words is "sixty-eight billion, five hundred sixty-one million, seven hundred ninety-five thousand, six hundred seventy-six".