36801368891 has 16 divisors (see below), whose sum is σ = 43908294144. Its totient is φ = 30158149824.

The previous prime is 36801368881. The next prime is 36801368917. The reversal of 36801368891 is 19886310863.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 36801368891 - 2¹⁸ = 36801106747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36801368881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290576 + ... + 397538.

It is an arithmetic number, because the mean of its divisors is an integer number (2744268384).

Almost surely, 2^36801368891 is an apocalyptic number.

36801368891 is a deficient number, since it is larger than the sum of its proper divisors (7106925253).

36801368891 is a wasteful number, since it uses less digits than its factorization.

36801368891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109130.

The product of its (nonzero) digits is 1492992, while the sum is 53.

The spelling of 36801368891 in words is "thirty-six billion, eight hundred one million, three hundred sixty-eight thousand, eight hundred ninety-one".