18983071358 has 4 divisors (see below), whose sum is σ = 28474607040. Its totient is φ = 9491535678.

The previous prime is 18983071339. The next prime is 18983071363. The reversal of 18983071358 is 85317038981.

It is a happy number.

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

It is a Curzon number.

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, 4745767838 + ... + 4745767841.

It is an arithmetic number, because the mean of its divisors is an integer number (7118651760).

Almost surely, 2^18983071358 is an apocalyptic number.

18983071358 is a deficient number, since it is larger than the sum of its proper divisors (9491535682).

18983071358 is an equidigital number, since it uses as much as digits as its factorization.

18983071358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491535681.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 18983071358 in words is "eighteen billion, nine hundred eighty-three million, seventy-one thousand, three hundred fifty-eight".