3999368736 has 96 divisors (see below), whose sum is σ = 12725294400. Its totient is φ = 1211927040.

The previous prime is 3999368713. The next prime is 3999368753. The reversal of 3999368736 is 6378639993.

It is a tau number, because it is divible by the number of its divisors (96).

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 15 ways as a sum of consecutive naturals, for example, 200901 + ... + 219908.

It is an arithmetic number, because the mean of its divisors is an integer number (132555150).

Almost surely, 2^3999368736 is an apocalyptic number.

3999368736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3999368736 is an abundant number, since it is smaller than the sum of its proper divisors (8725925664).

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

3999368736 is a wasteful number, since it uses less digits than its factorization.

3999368736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420839 (or 420825 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 63.

The square root of 3999368736 is about 63240.5624263415. The cubic root of 3999368736 is about 1587.3175418135.

The spelling of 3999368736 in words is "three billion, nine hundred ninety-nine million, three hundred sixty-eight thousand, seven hundred thirty-six".