36439668008 has 32 divisors (see below), whose sum is σ = 69191577000. Its totient is φ = 17989171200.

The previous prime is 36439668007. The next prime is 36439668043. The reversal of 36439668008 is 80086693463.

It can be written as a sum of positive squares in 4 ways, for example, as 27138608644 + 9301059364 = 164738^2 + 96442^2 .

It is not an unprimeable number, because it can be changed into a prime (36439668007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462608 + ... + 535616.

Almost surely, 2^36439668008 is an apocalyptic number.

It is an amenable number.

36439668008 is a deficient number, since it is larger than the sum of its proper divisors (32751908992).

36439668008 is a wasteful number, since it uses less digits than its factorization.

36439668008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73805 (or 73801 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 53.

The spelling of 36439668008 in words is "thirty-six billion, four hundred thirty-nine million, six hundred sixty-eight thousand, eight".