36646590687 has 32 divisors (see below), whose sum is σ = 56730820608. Its totient is φ = 20609687136.

The previous prime is 36646590619. The next prime is 36646590707. The reversal of 36646590687 is 78609564663.

It is not a de Polignac number, because 36646590687 - 2¹⁴ = 36646574303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36646590687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36646590587) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 418438 + ... + 498380.

It is an arithmetic number, because the mean of its divisors is an integer number (1772838144).

Almost surely, 2^36646590687 is an apocalyptic number.

36646590687 is a deficient number, since it is larger than the sum of its proper divisors (20084229921).

36646590687 is a wasteful number, since it uses less digits than its factorization.

36646590687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80299.

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 36646590687 in words is "thirty-six billion, six hundred forty-six million, five hundred ninety thousand, six hundred eighty-seven".