36531855361 has 2 divisors, whose sum is σ = 36531855362. Its totient is φ = 36531855360.

The previous prime is 36531855341. The next prime is 36531855421. The reversal of 36531855361 is 16355813563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18827956225 + 17703899136 = 137215^2 + 133056^2 .

It is a cyclic number.

It is not a de Polignac number, because 36531855361 - 2²³ = 36523466753 is a prime.

It is a super-2 number, since 2×36531855361² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36531855331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18265927680 + 18265927681.

It is an arithmetic number, because the mean of its divisors is an integer number (18265927681).

Almost surely, 2^36531855361 is an apocalyptic number.

It is an amenable number.

36531855361 is a deficient number, since it is larger than the sum of its proper divisors (1).

36531855361 is an equidigital number, since it uses as much as digits as its factorization.

36531855361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 972000, while the sum is 46.

The spelling of 36531855361 in words is "thirty-six billion, five hundred thirty-one million, eight hundred fifty-five thousand, three hundred sixty-one".