17017157923 has 2 divisors, whose sum is σ = 17017157924. Its totient is φ = 17017157922.

The previous prime is 17017157909. The next prime is 17017157999. The reversal of 17017157923 is 32975171071.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17017157923 - 2²⁵ = 16983603491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17017157923.

It is not a weakly prime, because it can be changed into another prime (17017152923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8508578961 + 8508578962.

It is an arithmetic number, because the mean of its divisors is an integer number (8508578962).

Almost surely, 2^17017157923 is an apocalyptic number.

17017157923 is a deficient number, since it is larger than the sum of its proper divisors (1).

17017157923 is an equidigital number, since it uses as much as digits as its factorization.

17017157923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92610, while the sum is 43.

The spelling of 17017157923 in words is "seventeen billion, seventeen million, one hundred fifty-seven thousand, nine hundred twenty-three".