18932345497 has 12 divisors (see below), whose sum is σ = 20760222720. Its totient is φ = 17254783728.

The previous prime is 18932345489. The next prime is 18932345501. The reversal of 18932345497 is 79454323981.

It is not a de Polignac number, because 18932345497 - 2³ = 18932345489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18932345417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695673 + ... + 722374.

It is an arithmetic number, because the mean of its divisors is an integer number (1730018560).

Almost surely, 2^18932345497 is an apocalyptic number.

It is an amenable number.

18932345497 is a deficient number, since it is larger than the sum of its proper divisors (1827877223).

18932345497 is a wasteful number, since it uses less digits than its factorization.

18932345497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418152 (or 1418139 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The spelling of 18932345497 in words is "eighteen billion, nine hundred thirty-two million, three hundred forty-five thousand, four hundred ninety-seven".