36011994978 has 16 divisors (see below), whose sum is σ = 72027254016. Its totient is φ = 12003454320.

The previous prime is 36011994947. The next prime is 36011995003. The reversal of 36011994978 is 87949911063.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 21448 + ... + 269228.

It is an arithmetic number, because the mean of its divisors is an integer number (4501703376).

Almost surely, 2^36011994978 is an apocalyptic number.

36011994978 is an abundant number, since it is smaller than the sum of its proper divisors (36015259038).

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

36011994978 is a wasteful number, since it uses less digits than its factorization.

36011994978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272009.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 36011994978 in words is "thirty-six billion, eleven million, nine hundred ninety-four thousand, nine hundred seventy-eight".