68149464701 has 2 divisors, whose sum is σ = 68149464702. Its totient is φ = 68149464700.

The previous prime is 68149464683. The next prime is 68149464791. The reversal of 68149464701 is 10746494186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60321816025 + 7827648676 = 245605^2 + 88474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68149464701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68149464701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68149464791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34074732350 + 34074732351.

It is an arithmetic number, because the mean of its divisors is an integer number (34074732351).

Almost surely, 2^68149464701 is an apocalyptic number.

It is an amenable number.

68149464701 is a deficient number, since it is larger than the sum of its proper divisors (1).

68149464701 is an equidigital number, since it uses as much as digits as its factorization.

68149464701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 68149464701 in words is "sixty-eight billion, one hundred forty-nine million, four hundred sixty-four thousand, seven hundred one".