170468399639 has 2 divisors, whose sum is σ = 170468399640. Its totient is φ = 170468399638.

The previous prime is 170468399617. The next prime is 170468399659. The reversal of 170468399639 is 936993864071.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170468399639 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170468399659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85234199819 + 85234199820.

It is an arithmetic number, because the mean of its divisors is an integer number (85234199820).

Almost surely, 2^170468399639 is an apocalyptic number.

170468399639 is a deficient number, since it is larger than the sum of its proper divisors (1).

170468399639 is an equidigital number, since it uses as much as digits as its factorization.

170468399639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 65.

The spelling of 170468399639 in words is "one hundred seventy billion, four hundred sixty-eight million, three hundred ninety-nine thousand, six hundred thirty-nine".