68376917144 has 8 divisors (see below), whose sum is σ = 128206719660. Its totient is φ = 34188458568.

The previous prime is 68376917137. The next prime is 68376917173. The reversal of 68376917144 is 44171967386.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×68376917144² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68376917144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4273557314 + ... + 4273557329.

Almost surely, 2^68376917144 is an apocalyptic number.

It is an amenable number.

68376917144 is a deficient number, since it is larger than the sum of its proper divisors (59829802516).

68376917144 is a wasteful number, since it uses less digits than its factorization.

68376917144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547114649 (or 8547114645 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 56.

The spelling of 68376917144 in words is "sixty-eight billion, three hundred seventy-six million, nine hundred seventeen thousand, one hundred forty-four".