33318393994 has 8 divisors (see below), whose sum is σ = 50099786820. Its totient is φ = 16618465056.

The previous prime is 33318393971. The next prime is 33318394001. The reversal of 33318393994 is 49939381333.

It can be written as a sum of positive squares in 2 ways, for example, as 28877904225 + 4440489769 = 169935^2 + 66637^2 .

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

It is a super-2 number, since 2×33318393994² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20364949 + ... + 20366584.

Almost surely, 2^33318393994 is an apocalyptic number.

33318393994 is a deficient number, since it is larger than the sum of its proper divisors (16781392826).

33318393994 is a wasteful number, since it uses less digits than its factorization.

33318393994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40731944.

The product of its digits is 5668704, while the sum is 55.

The spelling of 33318393994 in words is "thirty-three billion, three hundred eighteen million, three hundred ninety-three thousand, nine hundred ninety-four".