36840579697 has 2 divisors, whose sum is σ = 36840579698. Its totient is φ = 36840579696.

The previous prime is 36840579689. The next prime is 36840579749. The reversal of 36840579697 is 79697504863.

It is a happy number.

36840579697 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., 26925199921 + 9915379776 = 164089^2 + 99576^2 .

It is an emirp because it is prime and its reverse (79697504863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36840579697 - 2³ = 36840579689 is a prime.

It is a super-2 number, since 2×36840579697² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36840579637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18420289848 + 18420289849.

It is an arithmetic number, because the mean of its divisors is an integer number (18420289849).

Almost surely, 2^36840579697 is an apocalyptic number.

It is an amenable number.

36840579697 is a deficient number, since it is larger than the sum of its proper divisors (1).

36840579697 is an equidigital number, since it uses as much as digits as its factorization.

36840579697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 64.

The spelling of 36840579697 in words is "thirty-six billion, eight hundred forty million, five hundred seventy-nine thousand, six hundred ninety-seven".