36520531291 has 2 divisors, whose sum is σ = 36520531292. Its totient is φ = 36520531290.

The previous prime is 36520531279. The next prime is 36520531303. The reversal of 36520531291 is 19213502563.

It is a balanced prime because it is at equal distance from previous prime (36520531279) and next prime (36520531303).

It is a cyclic number.

It is not a de Polignac number, because 36520531291 - 2⁹ = 36520530779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36520531291.

It is not a weakly prime, because it can be changed into another prime (36520531241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18260265645 + 18260265646.

It is an arithmetic number, because the mean of its divisors is an integer number (18260265646).

Almost surely, 2^36520531291 is an apocalyptic number.

36520531291 is a deficient number, since it is larger than the sum of its proper divisors (1).

36520531291 is an equidigital number, since it uses as much as digits as its factorization.

36520531291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 36520531291 in words is "thirty-six billion, five hundred twenty million, five hundred thirty-one thousand, two hundred ninety-one".