3942170712517 has 2 divisors, whose sum is σ = 3942170712518. Its totient is φ = 3942170712516.

The previous prime is 3942170712479. The next prime is 3942170712533. The reversal of 3942170712517 is 7152170712493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3674432768161 + 267737944356 = 1916881^2 + 517434^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3942170712517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3942170712317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971085356258 + 1971085356259.

It is an arithmetic number, because the mean of its divisors is an integer number (1971085356259).

Almost surely, 2^{3942170712517} is an apocalyptic number.

It is an amenable number.

3942170712517 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942170712517 is an equidigital number, since it uses as much as digits as its factorization.

3942170712517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 740880, while the sum is 49.

The spelling of 3942170712517 in words is "three trillion, nine hundred forty-two billion, one hundred seventy million, seven hundred twelve thousand, five hundred seventeen".