82381023445808 has 30 divisors (see below), whose sum is σ = 164043695242476. Its totient is φ = 40077254638656.

The previous prime is 82381023445793. The next prime is 82381023445871. The reversal of 82381023445808 is 80854432018328.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1880479910 + ... + 1880523717.

Almost surely, 2^{82381023445808} is an apocalyptic number.

It is an amenable number.

82381023445808 is a deficient number, since it is larger than the sum of its proper divisors (81662671796668).

82381023445808 is a wasteful number, since it uses less digits than its factorization.

82381023445808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761003709 (or 3761003666 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 56.

The spelling of 82381023445808 in words is "eighty-two trillion, three hundred eighty-one billion, twenty-three million, four hundred forty-five thousand, eight hundred eight".