17138539433 has 2 divisors, whose sum is σ = 17138539434. Its totient is φ = 17138539432.

The previous prime is 17138539417. The next prime is 17138539513. The reversal of 17138539433 is 33493583171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14833291264 + 2305248169 = 121792^2 + 48013^2 .

It is a cyclic number.

It is not a de Polignac number, because 17138539433 - 2⁴ = 17138539417 is a prime.

It is a super-2 number, since 2×17138539433² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17138599433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8569269716 + 8569269717.

It is an arithmetic number, because the mean of its divisors is an integer number (8569269717).

Almost surely, 2^17138539433 is an apocalyptic number.

It is an amenable number.

17138539433 is a deficient number, since it is larger than the sum of its proper divisors (1).

17138539433 is an equidigital number, since it uses as much as digits as its factorization.

17138539433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 47.

The spelling of 17138539433 in words is "seventeen billion, one hundred thirty-eight million, five hundred thirty-nine thousand, four hundred thirty-three".