18190424597 has 2 divisors, whose sum is σ = 18190424598. Its totient is φ = 18190424596.

The previous prime is 18190424591. The next prime is 18190424641. The reversal of 18190424597 is 79542409181.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10330892881 + 7859531716 = 101641^2 + 88654^2 .

It is a cyclic number.

It is not a de Polignac number, because 18190424597 - 2²⁶ = 18123315733 is a prime.

It is a super-2 number, since 2×18190424597² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18190424591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095212298 + 9095212299.

It is an arithmetic number, because the mean of its divisors is an integer number (9095212299).

Almost surely, 2^18190424597 is an apocalyptic number.

It is an amenable number.

18190424597 is a deficient number, since it is larger than the sum of its proper divisors (1).

18190424597 is an equidigital number, since it uses as much as digits as its factorization.

18190424597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 18190424597 in words is "eighteen billion, one hundred ninety million, four hundred twenty-four thousand, five hundred ninety-seven".