33986936018 has 32 divisors (see below), whose sum is σ = 59101656960. Its totient is φ = 14356517760.

The previous prime is 33986935973. The next prime is 33986936021. The reversal of 33986936018 is 81063968933.

It is a super-2 number, since 2×33986936018² (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 15 ways as a sum of consecutive naturals, for example, 1603208 + ... + 1624268.

It is an arithmetic number, because the mean of its divisors is an integer number (1846926780).

Almost surely, 2^33986936018 is an apocalyptic number.

33986936018 is a deficient number, since it is larger than the sum of its proper divisors (25114720942).

33986936018 is a wasteful number, since it uses less digits than its factorization.

33986936018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22722.

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

The spelling of 33986936018 in words is "thirty-three billion, nine hundred eighty-six million, nine hundred thirty-six thousand, eighteen".