68512251767 has 8 divisors (see below), whose sum is σ = 68815687824. Its totient is φ = 68208896448.

The previous prime is 68512251763. The next prime is 68512251817. The reversal of 68512251767 is 76715221586.

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

It is a cyclic number.

It is not a de Polignac number, because 68512251767 - 2² = 68512251763 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 (68512251763) 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, 2231573 + ... + 2262065.

It is an arithmetic number, because the mean of its divisors is an integer number (8601960978).

Almost surely, 2^68512251767 is an apocalyptic number.

68512251767 is a deficient number, since it is larger than the sum of its proper divisors (303436057).

68512251767 is a wasteful number, since it uses less digits than its factorization.

68512251767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40369.

The product of its digits is 1411200, while the sum is 50.

The spelling of 68512251767 in words is "sixty-eight billion, five hundred twelve million, two hundred fifty-one thousand, seven hundred sixty-seven".