36445544137 has 4 divisors (see below), whose sum is σ = 36478173316. Its totient is φ = 36412914960.

The previous prime is 36445544131. The next prime is 36445544141. The reversal of 36445544137 is 73144554463.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1813822921 + 34631721216 = 42589^2 + 186096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36445544137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36445544131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16312914 + ... + 16315147.

It is an arithmetic number, because the mean of its divisors is an integer number (9119543329).

Almost surely, 2^36445544137 is an apocalyptic number.

It is an amenable number.

36445544137 is a deficient number, since it is larger than the sum of its proper divisors (32629179).

36445544137 is a wasteful number, since it uses less digits than its factorization.

36445544137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32629178.

The product of its digits is 2419200, while the sum is 46.

The spelling of 36445544137 in words is "thirty-six billion, four hundred forty-five million, five hundred forty-four thousand, one hundred thirty-seven".