17591954089 has 2 divisors, whose sum is σ = 17591954090. Its totient is φ = 17591954088.

The previous prime is 17591954069. The next prime is 17591954101. The reversal of 17591954089 is 98045919571.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14398800025 + 3193154064 = 119995^2 + 56508^2 .

It is a cyclic number.

It is not a de Polignac number, because 17591954089 - 2¹³ = 17591945897 is a prime.

It is not a weakly prime, because it can be changed into another prime (17591954069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8795977044 + 8795977045.

It is an arithmetic number, because the mean of its divisors is an integer number (8795977045).

Almost surely, 2^17591954089 is an apocalyptic number.

It is an amenable number.

17591954089 is a deficient number, since it is larger than the sum of its proper divisors (1).

17591954089 is an equidigital number, since it uses as much as digits as its factorization.

17591954089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4082400, while the sum is 58.

The spelling of 17591954089 in words is "seventeen billion, five hundred ninety-one million, nine hundred fifty-four thousand, eighty-nine".