68151693967 has 16 divisors (see below), whose sum is σ = 81488586240. Its totient is φ = 55728443232.

The previous prime is 68151693877. The next prime is 68151693983. The reversal of 68151693967 is 76939615186.

It is a de Polignac number, because none of the positive numbers 2^k-68151693967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68151693067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497428 + ... + 619465.

It is an arithmetic number, because the mean of its divisors is an integer number (5093036640).

Almost surely, 2^68151693967 is an apocalyptic number.

68151693967 is a deficient number, since it is larger than the sum of its proper divisors (13336892273).

68151693967 is a wasteful number, since it uses less digits than its factorization.

68151693967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117302.

The product of its digits is 14696640, while the sum is 61.

The spelling of 68151693967 in words is "sixty-eight billion, one hundred fifty-one million, six hundred ninety-three thousand, nine hundred sixty-seven".