18838720335 has 16 divisors (see below), whose sum is σ = 30480628320. Its totient is φ = 9934425600.

The previous prime is 18838720333. The next prime is 18838720393. The reversal of 18838720335 is 53302783881.

It is not a de Polignac number, because 18838720335 - 2¹ = 18838720333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18838720333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7054366 + ... + 7057035.

It is an arithmetic number, because the mean of its divisors is an integer number (1905039270).

Almost surely, 2^18838720335 is an apocalyptic number.

18838720335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18838720335 is a deficient number, since it is larger than the sum of its proper divisors (11641907985).

18838720335 is a wasteful number, since it uses less digits than its factorization.

18838720335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14111498.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 18838720335 in words is "eighteen billion, eight hundred thirty-eight million, seven hundred twenty thousand, three hundred thirty-five".