36815747261 has 2 divisors, whose sum is σ = 36815747262. Its totient is φ = 36815747260.

The previous prime is 36815747257. The next prime is 36815747263. The reversal of 36815747261 is 16274751863.

36815747261 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., 32880568900 + 3935178361 = 181330^2 + 62731^2 .

It is a cyclic number.

It is not a de Polignac number, because 36815747261 - 2² = 36815747257 is a prime.

Together with 36815747263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36815747263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18407873630 + 18407873631.

It is an arithmetic number, because the mean of its divisors is an integer number (18407873631).

Almost surely, 2^36815747261 is an apocalyptic number.

It is an amenable number.

36815747261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36815747261 is an equidigital number, since it uses as much as digits as its factorization.

36815747261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The spelling of 36815747261 in words is "thirty-six billion, eight hundred fifteen million, seven hundred forty-seven thousand, two hundred sixty-one".