36521743613 has 2 divisors, whose sum is σ = 36521743614. Its totient is φ = 36521743612.

The previous prime is 36521743579. The next prime is 36521743619. The reversal of 36521743613 is 31634712563.

36521743613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35638643524 + 883100089 = 188782^2 + 29717^2 .

It is a cyclic number.

It is not a de Polignac number, because 36521743613 - 2²² = 36517549309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36521743619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18260871806 + 18260871807.

It is an arithmetic number, because the mean of its divisors is an integer number (18260871807).

Almost surely, 2^36521743613 is an apocalyptic number.

It is an amenable number.

36521743613 is a deficient number, since it is larger than the sum of its proper divisors (1).

36521743613 is an equidigital number, since it uses as much as digits as its factorization.

36521743613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 41.

The spelling of 36521743613 in words is "thirty-six billion, five hundred twenty-one million, seven hundred forty-three thousand, six hundred thirteen".