18845890735 has 48 divisors (see below), whose sum is σ = 26530094592. Its totient is φ = 12813964800.

The previous prime is 18845890733. The next prime is 18845890759. The reversal of 18845890735 is 53709854881.

It is not a de Polignac number, because 18845890735 - 2¹ = 18845890733 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 18845890735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18845890733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24379809 + ... + 24380581.

It is an arithmetic number, because the mean of its divisors is an integer number (552710304).

Almost surely, 2^18845890735 is an apocalyptic number.

18845890735 is a deficient number, since it is larger than the sum of its proper divisors (7684203857).

18845890735 is a wasteful number, since it uses less digits than its factorization.

18845890735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 18845890735 in words is "eighteen billion, eight hundred forty-five million, eight hundred ninety thousand, seven hundred thirty-five".