18614920297 has 4 divisors (see below), whose sum is σ = 18617008896. Its totient is φ = 18612831700.

The previous prime is 18614920271. The next prime is 18614920301. The reversal of 18614920297 is 79202941681.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18614920297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18614920297.

It is not an unprimeable number, because it can be changed into a prime (18614920237) 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, 1030873 + ... + 1048774.

It is an arithmetic number, because the mean of its divisors is an integer number (4654252224).

Almost surely, 2^18614920297 is an apocalyptic number.

It is an amenable number.

18614920297 is a deficient number, since it is larger than the sum of its proper divisors (2088599).

18614920297 is an equidigital number, since it uses as much as digits as its factorization.

18614920297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088598.

The product of its (nonzero) digits is 435456, while the sum is 49.

The spelling of 18614920297 in words is "eighteen billion, six hundred fourteen million, nine hundred twenty thousand, two hundred ninety-seven".