33916966978 has 8 divisors (see below), whose sum is σ = 51572374668. Its totient is φ = 16726175424.

The previous prime is 33916966961. The next prime is 33916966987. The reversal of 33916966978 is 87966961933.

It can be written as a sum of positive squares in 2 ways, for example, as 33807073689 + 109893289 = 183867^2 + 10483^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116153851 + ... + 116154142.

Almost surely, 2^33916966978 is an apocalyptic number.

33916966978 is a deficient number, since it is larger than the sum of its proper divisors (17655407690).

33916966978 is a wasteful number, since it uses less digits than its factorization.

33916966978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232308068.

The product of its digits is 79361856, while the sum is 67.

The spelling of 33916966978 in words is "thirty-three billion, nine hundred sixteen million, nine hundred sixty-six thousand, nine hundred seventy-eight".