381885109892622 has 768 divisors, whose sum is σ = 1099152322560000. Its totient is φ = 97523552206080.

The previous prime is 381885109892579. The next prime is 381885109892633. The reversal of 381885109892622 is 226298901588183.

381885109892622 is a `hidden beast` number, since 3 + 8 + 1 + 8 + 8 + 510 + 9 + 89 + 2 + 6 + 22 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 148074876529 + ... + 148074879107.

It is an arithmetic number, because the mean of its divisors is an integer number (1431187920000).

Almost surely, 2^{381885109892622} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381885109892622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549576161280000).

381885109892622 is an abundant number, since it is smaller than the sum of its proper divisors (717267212667378).

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

381885109892622 is a wasteful number, since it uses less digits than its factorization.

381885109892622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346 (or 4333 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 72.

The spelling of 381885109892622 in words is "three hundred eighty-one trillion, eight hundred eighty-five billion, one hundred nine million, eight hundred ninety-two thousand, six hundred twenty-two".