2133009978 has 32 divisors (see below), whose sum is σ = 4659586560. Its totient is φ = 645568560.

The previous prime is 2133009961. The next prime is 2133010021. The reversal of 2133009978 is 8799003312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35043 + ... + 74121.

It is an arithmetic number, because the mean of its divisors is an integer number (145612080).

Almost surely, 2^2133009978 is an apocalyptic number.

2133009978 is an abundant number, since it is smaller than the sum of its proper divisors (2526576582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2133009978 is a wasteful number, since it uses less digits than its factorization.

2133009978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39922.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 2133009978 is about 46184.5209783538. The cubic root of 2133009978 is about 1287.2541353249.

The spelling of 2133009978 in words is "two billion, one hundred thirty-three million, nine thousand, nine hundred seventy-eight".