3781391525968 has 60 divisors (see below), whose sum is σ = 8893148436000. Its totient is φ = 1550135649216.

The previous prime is 3781391525953. The next prime is 3781391526013. The reversal of 3781391525968 is 8695251931873.

3781391525968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104834218 + ... + 104870281.

It is an arithmetic number, because the mean of its divisors is an integer number (148219140600).

Almost surely, 2^{3781391525968} is an apocalyptic number.

It is an amenable number.

3781391525968 is an abundant number, since it is smaller than the sum of its proper divisors (5111756910032).

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

3781391525968 is a wasteful number, since it uses less digits than its factorization.

3781391525968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209704544 (or 209704531 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 67.

The spelling of 3781391525968 in words is "three trillion, seven hundred eighty-one billion, three hundred ninety-one million, five hundred twenty-five thousand, nine hundred sixty-eight".