171367090639 has 2 divisors, whose sum is σ = 171367090640. Its totient is φ = 171367090638.

The previous prime is 171367090607. The next prime is 171367090721. The reversal of 171367090639 is 936090763171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 171367090639 - 2⁵ = 171367090607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171367090339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85683545319 + 85683545320.

It is an arithmetic number, because the mean of its divisors is an integer number (85683545320).

Almost surely, 2^171367090639 is an apocalyptic number.

171367090639 is a deficient number, since it is larger than the sum of its proper divisors (1).

171367090639 is an equidigital number, since it uses as much as digits as its factorization.

171367090639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 52.

The spelling of 171367090639 in words is "one hundred seventy-one billion, three hundred sixty-seven million, ninety thousand, six hundred thirty-nine".