68191756367 has 8 divisors (see below), whose sum is σ = 77935168800. Its totient is φ = 58448777184.

The previous prime is 68191756349. The next prime is 68191756397. The reversal of 68191756367 is 76365719186.

68191756367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68191756367 - 2²⁴ = 68174979151 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 (68191756307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369509 + ... + 522417.

It is an arithmetic number, because the mean of its divisors is an integer number (9741896100).

Almost surely, 2^68191756367 is an apocalyptic number.

68191756367 is a deficient number, since it is larger than the sum of its proper divisors (9743412433).

68191756367 is a wasteful number, since it uses less digits than its factorization.

68191756367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216625.

The product of its digits is 11430720, while the sum is 59.

The spelling of 68191756367 in words is "sixty-eight billion, one hundred ninety-one million, seven hundred fifty-six thousand, three hundred sixty-seven".