18958333349 has 8 divisors (see below), whose sum is σ = 19869762240. Its totient is φ = 18054167296.

The previous prime is 18958333327. The next prime is 18958333391. The reversal of 18958333349 is 94333385981.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 18958333349 - 2²⁸ = 18689897893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18958333294 and 18958333303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18958333249) 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, 1810364 + ... + 1820805.

It is an arithmetic number, because the mean of its divisors is an integer number (2483720280).

Almost surely, 2^18958333349 is an apocalyptic number.

It is an amenable number.

18958333349 is a deficient number, since it is larger than the sum of its proper divisors (911428891).

18958333349 is a wasteful number, since it uses less digits than its factorization.

18958333349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3631419.

The product of its digits is 8398080, while the sum is 56.

The spelling of 18958333349 in words is "eighteen billion, nine hundred fifty-eight million, three hundred thirty-three thousand, three hundred forty-nine".