36552277031621 has 12 divisors (see below), whose sum is σ = 40650013516932. Its totient is φ = 32828656288896.

The previous prime is 36552277031537. The next prime is 36552277031639. The reversal of 36552277031621 is 12613077225563.

It can be written as a sum of positive squares in 6 ways, for example, as 47661002596 + 36504616029025 = 218314^2 + 6041905^2 .

It is a de Polignac number, because none of the positive numbers 2^k-36552277031621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36552277031621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36552277031671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2922772976 + ... + 2922785481.

It is an arithmetic number, because the mean of its divisors is an integer number (3387501126411).

Almost surely, 2^{36552277031621} is an apocalyptic number.

It is an amenable number.

36552277031621 is a deficient number, since it is larger than the sum of its proper divisors (4097736485311).

36552277031621 is a wasteful number, since it uses less digits than its factorization.

36552277031621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5845558520 (or 5845558507 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 36552277031621 in words is "thirty-six trillion, five hundred fifty-two billion, two hundred seventy-seven million, thirty-one thousand, six hundred twenty-one".