36312526721 has 2 divisors, whose sum is σ = 36312526722. Its totient is φ = 36312526720.

The previous prime is 36312526687. The next prime is 36312526727. The reversal of 36312526721 is 12762521363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23543526721 + 12769000000 = 153439^2 + 113000^2 .

It is an emirp because it is prime and its reverse (12762521363) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36312526721 - 2³⁰ = 35238784897 is a prime.

It is not a weakly prime, because it can be changed into another prime (36312526727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18156263360 + 18156263361.

It is an arithmetic number, because the mean of its divisors is an integer number (18156263361).

Almost surely, 2^36312526721 is an apocalyptic number.

It is an amenable number.

36312526721 is a deficient number, since it is larger than the sum of its proper divisors (1).

36312526721 is an equidigital number, since it uses as much as digits as its factorization.

36312526721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 38.

It can be divided in two parts, 3631 and 2526721, that added together give a palindrome (2530352).

The spelling of 36312526721 in words is "thirty-six billion, three hundred twelve million, five hundred twenty-six thousand, seven hundred twenty-one".