3936926987808 has 48 divisors (see below), whose sum is σ = 10667802168576. Its totient is φ = 1269976446720.

The previous prime is 3936926987801. The next prime is 3936926987843. The reversal of 3936926987808 is 8087896296393.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (3936926987801) 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 7 ways as a sum of consecutive naturals, for example, 661443091 + ... + 661449042.

It is an arithmetic number, because the mean of its divisors is an integer number (222245878512).

Almost surely, 2^{3936926987808} is an apocalyptic number.

It is an amenable number.

3936926987808 is an abundant number, since it is smaller than the sum of its proper divisors (6730875180768).

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

3936926987808 is a wasteful number, since it uses less digits than its factorization.

3936926987808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322892177 (or 1322892169 counting only the distinct ones).

The product of its (nonzero) digits is 1693052928, while the sum is 78.

The spelling of 3936926987808 in words is "three trillion, nine hundred thirty-six billion, nine hundred twenty-six million, nine hundred eighty-seven thousand, eight hundred eight".