39685332992 has 126 divisors (see below), whose sum is σ = 83179915047. Its totient is φ = 18932121600.

The previous prime is 39685332959. The next prime is 39685333007. The reversal of 39685332992 is 29923358693.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 19842666496 + 19842666496 = 140864^2 + 140864^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=140864.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 558948317 + ... + 558948387.

Almost surely, 2^39685332992 is an apocalyptic number.

39685332992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39685332992

39685332992 is an abundant number, since it is smaller than the sum of its proper divisors (43494582055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39685332992 is an frugal number, since it uses more digits than its factorization.

39685332992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 104 counting only the distinct ones).

The product of its digits is 18895680, while the sum is 59.

The spelling of 39685332992 in words is "thirty-nine billion, six hundred eighty-five million, three hundred thirty-two thousand, nine hundred ninety-two".