74537473589 has 2 divisors, whose sum is σ = 74537473590. Its totient is φ = 74537473588.

The previous prime is 74537473511. The next prime is 74537473609. The reversal of 74537473589 is 98537473547.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44834674564 + 29702799025 = 211742^2 + 172345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74537473589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74537479589) 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, 37268736794 + 37268736795.

It is an arithmetic number, because the mean of its divisors is an integer number (37268736795).

Almost surely, 2^74537473589 is an apocalyptic number.

It is an amenable number.

74537473589 is a deficient number, since it is larger than the sum of its proper divisors (1).

74537473589 is an equidigital number, since it uses as much as digits as its factorization.

74537473589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88905600, while the sum is 62.

The spelling of 74537473589 in words is "seventy-four billion, five hundred thirty-seven million, four hundred seventy-three thousand, five hundred eighty-nine".