18245528597 has 2 divisors, whose sum is σ = 18245528598. Its totient is φ = 18245528596.

The previous prime is 18245528591. The next prime is 18245528627. The reversal of 18245528597 is 79582554281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17603717041 + 641811556 = 132679^2 + 25334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18245528597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18245528591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9122764298 + 9122764299.

It is an arithmetic number, because the mean of its divisors is an integer number (9122764299).

Almost surely, 2^18245528597 is an apocalyptic number.

It is an amenable number.

18245528597 is a deficient number, since it is larger than the sum of its proper divisors (1).

18245528597 is an equidigital number, since it uses as much as digits as its factorization.

18245528597 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064000, while the sum is 56.

The spelling of 18245528597 in words is "eighteen billion, two hundred forty-five million, five hundred twenty-eight thousand, five hundred ninety-seven".