18700496873 has 4 divisors (see below), whose sum is σ = 18705528960. Its totient is φ = 18695464788.

The previous prime is 18700496833. The next prime is 18700496887. The reversal of 18700496873 is 37869400781.

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 not a de Polignac number, because 18700496873 - 2¹² = 18700492777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18700496833) 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, 2510465 + ... + 2517902.

It is an arithmetic number, because the mean of its divisors is an integer number (4676382240).

Almost surely, 2^18700496873 is an apocalyptic number.

It is an amenable number.

18700496873 is a deficient number, since it is larger than the sum of its proper divisors (5032087).

18700496873 is an equidigital number, since it uses as much as digits as its factorization.

18700496873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5032086.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 18700496873 in words is "eighteen billion, seven hundred million, four hundred ninety-six thousand, eight hundred seventy-three".