381581330800 has 30 divisors (see below), whose sum is σ = 916749148208. Its totient is φ = 152632532160.

The previous prime is 381581330749. The next prime is 381581330839. The reversal of 381581330800 is 8033185183.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 476976264 + ... + 476977063.

Almost surely, 2^381581330800 is an apocalyptic number.

It is an amenable number.

381581330800 is an abundant number, since it is smaller than the sum of its proper divisors (535167817408).

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

381581330800 is a wasteful number, since it uses less digits than its factorization.

381581330800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953953345 (or 953953334 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 381581330800 in words is "three hundred eighty-one billion, five hundred eighty-one million, three hundred thirty thousand, eight hundred".