39816399996 has 36 divisors (see below), whose sum is σ = 100661815800. Its totient is φ = 13270181088.

The previous prime is 39816399991. The next prime is 39816400049. The reversal of 39816399996 is 69999361893.

39816399996 is a `hidden beast` number, since 398 + 1 + 63 + 9 + 99 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39816399991) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 178135 + ... + 333713.

It is an arithmetic number, because the mean of its divisors is an integer number (2796161550).

Almost surely, 2^39816399996 is an apocalyptic number.

39816399996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39816399996 is an abundant number, since it is smaller than the sum of its proper divisors (60845415804).

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

39816399996 is a wasteful number, since it uses less digits than its factorization.

39816399996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162698 (or 162693 counting only the distinct ones).

The product of its digits is 153055008, while the sum is 72.

The spelling of 39816399996 in words is "thirty-nine billion, eight hundred sixteen million, three hundred ninety-nine thousand, nine hundred ninety-six".