83117708856583 has 2 divisors, whose sum is σ = 83117708856584. Its totient is φ = 83117708856582.

The previous prime is 83117708856409. The next prime is 83117708856691. The reversal of 83117708856583 is 38565880771138.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83117708856583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83117708856883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41558854428291 + 41558854428292.

It is an arithmetic number, because the mean of its divisors is an integer number (41558854428292).

Almost surely, 2^{83117708856583} is an apocalyptic number.

83117708856583 is a deficient number, since it is larger than the sum of its proper divisors (1).

83117708856583 is an equidigital number, since it uses as much as digits as its factorization.

83117708856583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270950400, while the sum is 70.

The spelling of 83117708856583 in words is "eighty-three trillion, one hundred seventeen billion, seven hundred eight million, eight hundred fifty-six thousand, five hundred eighty-three".