18710193399 has 16 divisors (see below), whose sum is σ = 26263399680. Its totient is φ = 11815398720.

The previous prime is 18710193391. The next prime is 18710193427. The reversal of 18710193399 is 99339101781.

It is not a de Polignac number, because 18710193399 - 2³ = 18710193391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18710193391) 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, 537214 + ... + 570980.

It is an arithmetic number, because the mean of its divisors is an integer number (1641462480).

Almost surely, 2^18710193399 is an apocalyptic number.

18710193399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18710193399 is a deficient number, since it is larger than the sum of its proper divisors (7553206281).

18710193399 is a wasteful number, since it uses less digits than its factorization.

18710193399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43510.

The product of its (nonzero) digits is 367416, while the sum is 51.

The spelling of 18710193399 in words is "eighteen billion, seven hundred ten million, one hundred ninety-three thousand, three hundred ninety-nine".