36646431044 has 24 divisors (see below), whose sum is σ = 66350406360. Its totient is φ = 17689319424.

The previous prime is 36646431011. The next prime is 36646431067. The reversal of 36646431044 is 44013464663.

It can be written as a sum of positive squares in 4 ways, for example, as 1042514944 + 35603916100 = 32288^2 + 188690^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36646430992 and 36646431010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1569842 + ... + 1593014.

It is an arithmetic number, because the mean of its divisors is an integer number (2764600265).

Almost surely, 2^36646431044 is an apocalyptic number.

It is an amenable number.

36646431044 is a deficient number, since it is larger than the sum of its proper divisors (29703975316).

36646431044 is a wasteful number, since it uses less digits than its factorization.

36646431044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36839 (or 36837 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 41.

The spelling of 36646431044 in words is "thirty-six billion, six hundred forty-six million, four hundred thirty-one thousand, forty-four".