381822161888 has 24 divisors (see below), whose sum is σ = 762299884080. Its totient is φ = 188222191360.

The previous prime is 381822161779. The next prime is 381822161891. The reversal of 381822161888 is 888161228183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84025493 + ... + 84030036.

It is an arithmetic number, because the mean of its divisors is an integer number (31762495170).

Almost surely, 2^381822161888 is an apocalyptic number.

It is an amenable number.

381822161888 is a deficient number, since it is larger than the sum of its proper divisors (380477722192).

381822161888 is a wasteful number, since it uses less digits than its factorization.

381822161888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168055610 (or 168055602 counting only the distinct ones).

The product of its digits is 2359296, while the sum is 56.

The spelling of 381822161888 in words is "three hundred eighty-one billion, eight hundred twenty-two million, one hundred sixty-one thousand, eight hundred eighty-eight".