18593936941 has 4 divisors (see below), whose sum is σ = 18638103484. Its totient is φ = 18549770400.

The previous prime is 18593936939. The next prime is 18593936951. The reversal of 18593936941 is 14963939581.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14963939581 = 6451 ⋅2319631.

It can be written as a sum of positive squares in 2 ways, for example, as 283787716 + 18310149225 = 16846^2 + 135315^2 .

It is a cyclic number.

It is not a de Polignac number, because 18593936941 - 2¹ = 18593936939 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18593936951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22082640 + ... + 22083481.

It is an arithmetic number, because the mean of its divisors is an integer number (4659525871).

Almost surely, 2^18593936941 is an apocalyptic number.

It is an amenable number.

18593936941 is a deficient number, since it is larger than the sum of its proper divisors (44166543).

18593936941 is an equidigital number, since it uses as much as digits as its factorization.

18593936941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44166542.

The product of its digits is 6298560, while the sum is 58.

The spelling of 18593936941 in words is "eighteen billion, five hundred ninety-three million, nine hundred thirty-six thousand, nine hundred forty-one".