36585727921 has 16 divisors (see below), whose sum is σ = 37594713600. Its totient is φ = 35586777600.

The previous prime is 36585727903. The next prime is 36585727943. The reversal of 36585727921 is 12972758563.

36585727921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 36585727921 - 2³⁵ = 2225989553 is a prime.

It is a Duffinian number.

Its product of digits (6350400) is a multiple of the sum of its prime divisors (4704).

It is not an unprimeable number, because it can be changed into a prime (36585727961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11231325 + ... + 11234581.

It is an arithmetic number, because the mean of its divisors is an integer number (2349669600).

Almost surely, 2^36585727921 is an apocalyptic number.

It is an amenable number.

36585727921 is a deficient number, since it is larger than the sum of its proper divisors (1008985679).

36585727921 is a wasteful number, since it uses less digits than its factorization.

36585727921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704.

The product of its digits is 6350400, while the sum is 55.

The spelling of 36585727921 in words is "thirty-six billion, five hundred eighty-five million, seven hundred twenty-seven thousand, nine hundred twenty-one".