36601381979 has 2 divisors, whose sum is σ = 36601381980. Its totient is φ = 36601381978.

The previous prime is 36601381877. The next prime is 36601381997. The reversal of 36601381979 is 97918310663.

It is a happy number.

Together with next prime (36601381997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (97918310663) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36601381979 is a prime.

It is a super-2 number, since 2×36601381979² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36601381979.

It is not a weakly prime, because it can be changed into another prime (36601681979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18300690989 + 18300690990.

It is an arithmetic number, because the mean of its divisors is an integer number (18300690990).

Almost surely, 2^36601381979 is an apocalyptic number.

36601381979 is a deficient number, since it is larger than the sum of its proper divisors (1).

36601381979 is an equidigital number, since it uses as much as digits as its factorization.

36601381979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The spelling of 36601381979 in words is "thirty-six billion, six hundred one million, three hundred eighty-one thousand, nine hundred seventy-nine".