18210513399 has 8 divisors (see below), whose sum is σ = 26148429552. Its totient is φ = 11206469760.

The previous prime is 18210513389. The next prime is 18210513449. The reversal of 18210513399 is 99331501281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18210513399 - 2²⁹ = 17673642487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18210513399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18210513319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233468082 + ... + 233468159.

It is an arithmetic number, because the mean of its divisors is an integer number (3268553694).

Almost surely, 2^18210513399 is an apocalyptic number.

18210513399 is a deficient number, since it is larger than the sum of its proper divisors (7937916153).

18210513399 is a wasteful number, since it uses less digits than its factorization.

18210513399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466936257.

The product of its (nonzero) digits is 58320, while the sum is 42.

The spelling of 18210513399 in words is "eighteen billion, two hundred ten million, five hundred thirteen thousand, three hundred ninety-nine".