18930593097 has 12 divisors (see below), whose sum is σ = 29447589444. Its totient is φ = 11649595680.

The previous prime is 18930593029. The next prime is 18930593131. The reversal of 18930593097 is 79039503981.

18930593097 is a `hidden beast` number, since 18 + 9 + 30 + 593 + 0 + 9 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8161134921 + 10769458176 = 90339^2 + 103776^2 .

It is not a de Polignac number, because 18930593097 - 2²⁰ = 18929544521 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18930593027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80899854 + ... + 80900087.

It is an arithmetic number, because the mean of its divisors is an integer number (2453965787).

Almost surely, 2^18930593097 is an apocalyptic number.

It is an amenable number.

18930593097 is a deficient number, since it is larger than the sum of its proper divisors (10516996347).

18930593097 is a wasteful number, since it uses less digits than its factorization.

18930593097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161799960 (or 161799957 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 18930593097 in words is "eighteen billion, nine hundred thirty million, five hundred ninety-three thousand, ninety-seven".