75918659489 has 2 divisors, whose sum is σ = 75918659490. Its totient is φ = 75918659488.

The previous prime is 75918659473. The next prime is 75918659513. The reversal of 75918659489 is 98495681957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53330974225 + 22587685264 = 230935^2 + 150292^2 .

It is a cyclic number.

It is not a de Polignac number, because 75918659489 - 2⁴ = 75918659473 is a prime.

It is a super-2 number, since 2×75918659489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75918659989) 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, 37959329744 + 37959329745.

It is an arithmetic number, because the mean of its divisors is an integer number (37959329745).

Almost surely, 2^75918659489 is an apocalyptic number.

It is an amenable number.

75918659489 is a deficient number, since it is larger than the sum of its proper divisors (1).

75918659489 is an equidigital number, since it uses as much as digits as its factorization.

75918659489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 195955200, while the sum is 71.

The spelling of 75918659489 in words is "seventy-five billion, nine hundred eighteen million, six hundred fifty-nine thousand, four hundred eighty-nine".