36681821027 has 16 divisors (see below), whose sum is σ = 37495782240. Its totient is φ = 35876908800.

The previous prime is 36681821003. The next prime is 36681821123. The reversal of 36681821027 is 72012818663.

It is a cyclic number.

It is not a de Polignac number, because 36681821027 - 2¹⁰ = 36681820003 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36681829027) 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, 11982077 + ... + 11985137.

It is an arithmetic number, because the mean of its divisors is an integer number (2343486390).

Almost surely, 2^36681821027 is an apocalyptic number.

36681821027 is a deficient number, since it is larger than the sum of its proper divisors (813961213).

36681821027 is a wasteful number, since it uses less digits than its factorization.

36681821027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4454.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 36681821027 in words is "thirty-six billion, six hundred eighty-one million, eight hundred twenty-one thousand, twenty-seven".