18399134302 has 4 divisors (see below), whose sum is σ = 27598701456. Its totient is φ = 9199567150.

The previous prime is 18399134297. The next prime is 18399134339. The reversal of 18399134302 is 20343199381.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4599783574 + ... + 4599783577.

It is an arithmetic number, because the mean of its divisors is an integer number (6899675364).

Almost surely, 2^18399134302 is an apocalyptic number.

18399134302 is a deficient number, since it is larger than the sum of its proper divisors (9199567154).

18399134302 is an equidigital number, since it uses as much as digits as its factorization.

18399134302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199567153.

The product of its (nonzero) digits is 139968, while the sum is 43.

The spelling of 18399134302 in words is "eighteen billion, three hundred ninety-nine million, one hundred thirty-four thousand, three hundred two".