68044070737 has 2 divisors, whose sum is σ = 68044070738. Its totient is φ = 68044070736.

The previous prime is 68044070687. The next prime is 68044070761. The reversal of 68044070737 is 73707044086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67765981761 + 278088976 = 260319^2 + 16676^2 .

It is a cyclic number.

It is not a de Polignac number, because 68044070737 - 2³⁵ = 33684332369 is a prime.

It is not a weakly prime, because it can be changed into another prime (68044070797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34022035368 + 34022035369.

It is an arithmetic number, because the mean of its divisors is an integer number (34022035369).

Almost surely, 2^68044070737 is an apocalyptic number.

It is an amenable number.

68044070737 is a deficient number, since it is larger than the sum of its proper divisors (1).

68044070737 is an equidigital number, since it uses as much as digits as its factorization.

68044070737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 46.

The spelling of 68044070737 in words is "sixty-eight billion, forty-four million, seventy thousand, seven hundred thirty-seven".