381623721973584 has 40 divisors (see below), whose sum is σ = 986036609028672. Its totient is φ = 127185284451840.

The previous prime is 381623721973583. The next prime is 381623721973601. The reversal of 381623721973584 is 485379127326183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381623721973583) 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, 706692057 + ... + 707231864.

Almost surely, 2^{381623721973584} is an apocalyptic number.

It is an amenable number.

381623721973584 is an abundant number, since it is smaller than the sum of its proper divisors (604412887055088).

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

381623721973584 is a wasteful number, since it uses less digits than its factorization.

381623721973584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413929555 (or 1413929549 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 69.

The spelling of 381623721973584 in words is "three hundred eighty-one trillion, six hundred twenty-three billion, seven hundred twenty-one million, nine hundred seventy-three thousand, five hundred eighty-four".