36849561977 has 2 divisors, whose sum is σ = 36849561978. Its totient is φ = 36849561976.

The previous prime is 36849561971. The next prime is 36849562003. The reversal of 36849561977 is 77916594863.

36849561977 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., 29606020096 + 7243541881 = 172064^2 + 85109^2 .

It is an emirp because it is prime and its reverse (77916594863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36849561977 - 2⁴ = 36849561961 is a prime.

It is not a weakly prime, because it can be changed into another prime (36849561971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18424780988 + 18424780989.

It is an arithmetic number, because the mean of its divisors is an integer number (18424780989).

Almost surely, 2^36849561977 is an apocalyptic number.

It is an amenable number.

36849561977 is a deficient number, since it is larger than the sum of its proper divisors (1).

36849561977 is an equidigital number, since it uses as much as digits as its factorization.

36849561977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68584320, while the sum is 65.

The spelling of 36849561977 in words is "thirty-six billion, eight hundred forty-nine million, five hundred sixty-one thousand, nine hundred seventy-seven".