36995821613 has 2 divisors, whose sum is σ = 36995821614. Its totient is φ = 36995821612.

The previous prime is 36995821579. The next prime is 36995821699. The reversal of 36995821613 is 31612859963.

36995821613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35429403529 + 1566418084 = 188227^2 + 39578^2 .

It is an emirp because it is prime and its reverse (31612859963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36995821613 - 2¹² = 36995817517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36995821013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18497910806 + 18497910807.

It is an arithmetic number, because the mean of its divisors is an integer number (18497910807).

Almost surely, 2^36995821613 is an apocalyptic number.

It is an amenable number.

36995821613 is a deficient number, since it is larger than the sum of its proper divisors (1).

36995821613 is an equidigital number, since it uses as much as digits as its factorization.

36995821613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 53.

The spelling of 36995821613 in words is "thirty-six billion, nine hundred ninety-five million, eight hundred twenty-one thousand, six hundred thirteen".