70647398917 has 2 divisors, whose sum is σ = 70647398918. Its totient is φ = 70647398916.

The previous prime is 70647398893. The next prime is 70647398929. The reversal of 70647398917 is 71989374607.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44506653156 + 26140745761 = 210966^2 + 161681^2 .

It is a cyclic number.

It is not a de Polignac number, because 70647398917 - 2¹⁵ = 70647366149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70647398947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35323699458 + 35323699459.

It is an arithmetic number, because the mean of its divisors is an integer number (35323699459).

Almost surely, 2^70647398917 is an apocalyptic number.

It is an amenable number.

70647398917 is a deficient number, since it is larger than the sum of its proper divisors (1).

70647398917 is an equidigital number, since it uses as much as digits as its factorization.

70647398917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16003008, while the sum is 61.

The spelling of 70647398917 in words is "seventy billion, six hundred forty-seven million, three hundred ninety-eight thousand, nine hundred seventeen".