381623049894520 has 128 divisors (see below), whose sum is σ = 1008422108991360. Its totient is φ = 127248230154240.

The previous prime is 381623049894491. The next prime is 381623049894523. The reversal of 381623049894520 is 25498940326183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381623049894523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48793689 + ... + 56072008.

It is an arithmetic number, because the mean of its divisors is an integer number (7878297726495).

Almost surely, 2^{381623049894520} is an apocalyptic number.

It is an amenable number.

381623049894520 is an abundant number, since it is smaller than the sum of its proper divisors (626799059096840).

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

381623049894520 is a wasteful number, since it uses less digits than its factorization.

381623049894520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104866073 (or 104866069 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 381623049894520 in words is "three hundred eighty-one trillion, six hundred twenty-three billion, forty-nine million, eight hundred ninety-four thousand, five hundred twenty".