18596004641 has 2 divisors, whose sum is σ = 18596004642. Its totient is φ = 18596004640.

The previous prime is 18596004629. The next prime is 18596004683. The reversal of 18596004641 is 14640069581.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17494030225 + 1101974416 = 132265^2 + 33196^2 .

It is a cyclic number.

It is not a de Polignac number, because 18596004641 - 2¹⁰ = 18596003617 is a prime.

It is a super-2 number, since 2×18596004641² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18596004592 and 18596004601.

It is not a weakly prime, because it can be changed into another prime (18596004601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9298002320 + 9298002321.

It is an arithmetic number, because the mean of its divisors is an integer number (9298002321).

Almost surely, 2^18596004641 is an apocalyptic number.

It is an amenable number.

18596004641 is a deficient number, since it is larger than the sum of its proper divisors (1).

18596004641 is an equidigital number, since it uses as much as digits as its factorization.

18596004641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 44.

The spelling of 18596004641 in words is "eighteen billion, five hundred ninety-six million, four thousand, six hundred forty-one".