36563500644 has 48 divisors (see below), whose sum is σ = 93176428800. Its totient is φ = 11067265440.

The previous prime is 36563500619. The next prime is 36563500657. The reversal of 36563500644 is 44600536563.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 36563500596 and 36563500605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40294 + ... + 273405.

It is an arithmetic number, because the mean of its divisors is an integer number (1941175600).

Almost surely, 2^36563500644 is an apocalyptic number.

It is an amenable number.

36563500644 is an abundant number, since it is smaller than the sum of its proper divisors (56612928156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36563500644 is a wasteful number, since it uses less digits than its factorization.

36563500644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314600 (or 314598 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 36563500644 in words is "thirty-six billion, five hundred sixty-three million, five hundred thousand, six hundred forty-four".