36544773646 has 32 divisors (see below), whose sum is σ = 59069104128. Its totient is φ = 16907425920.

The previous prime is 36544773607. The next prime is 36544773653. The reversal of 36544773646 is 64637744563.

It is a super-2 number, since 2×36544773646² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 6638131 + ... + 6643633.

It is an arithmetic number, because the mean of its divisors is an integer number (1845909504).

Almost surely, 2^36544773646 is an apocalyptic number.

36544773646 is a deficient number, since it is larger than the sum of its proper divisors (22524330482).

36544773646 is a wasteful number, since it uses less digits than its factorization.

36544773646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10216.

The product of its digits is 30481920, while the sum is 55.

The spelling of 36544773646 in words is "thirty-six billion, five hundred forty-four million, seven hundred seventy-three thousand, six hundred forty-six".