381857347524 has 24 divisors (see below), whose sum is σ = 915081572608. Its totient is φ = 123845626080.

The previous prime is 381857347523. The next prime is 381857347559. The reversal of 381857347524 is 425743758183.

It is a happy number.

381857347524 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (381857347523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430019092 + ... + 430019979.

Almost surely, 2^381857347524 is an apocalyptic number.

It is an amenable number.

381857347524 is an abundant number, since it is smaller than the sum of its proper divisors (533224225084).

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

381857347524 is a wasteful number, since it uses less digits than its factorization.

381857347524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860039115 (or 860039113 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 57.

The spelling of 381857347524 in words is "three hundred eighty-one billion, eight hundred fifty-seven million, three hundred forty-seven thousand, five hundred twenty-four".