18329462939 has 4 divisors (see below), whose sum is σ = 18629946000. Its totient is φ = 18028979880.

The previous prime is 18329462881. The next prime is 18329462941. The reversal of 18329462939 is 93926492381.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18329462939 - 2¹² = 18329458843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18329462989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150241439 + ... + 150241560.

It is an arithmetic number, because the mean of its divisors is an integer number (4657486500).

Almost surely, 2^18329462939 is an apocalyptic number.

18329462939 is a deficient number, since it is larger than the sum of its proper divisors (300483061).

18329462939 is an equidigital number, since it uses as much as digits as its factorization.

18329462939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300483060.

The product of its digits is 5038848, while the sum is 56.

The spelling of 18329462939 in words is "eighteen billion, three hundred twenty-nine million, four hundred sixty-two thousand, nine hundred thirty-nine".