2381521795524 has 81 divisors (see below), whose sum is σ = 6353942919597. Its totient is φ = 752003958528.

The previous prime is 2381521795501. The next prime is 2381521795577. The reversal of 2381521795524 is 4255971251832.

The square root of 2381521795524 is 1543218.

It is a perfect power (a square), and thus also a powerful number.

2381521795524 is a `hidden beast` number, since 2 + 3 + 8 + 1 + 5 + 21 + 7 + 95 + 524 = 666.

2381521795524 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2324862562500 + 56659233024 = 1524750^2 + 238032^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 175920084 + ... + 175933620.

Almost surely, 2^{2381521795524} is an apocalyptic number.

2381521795524 is the 1543218-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2381521795524

2381521795524 is an abundant number, since it is smaller than the sum of its proper divisors (3972421124073).

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

2381521795524 is an equidigital number, since it uses as much as digits as its factorization.

2381521795524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27122 (or 13561 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 54.

The spelling of 2381521795524 in words is "two trillion, three hundred eighty-one billion, five hundred twenty-one million, seven hundred ninety-five thousand, five hundred twenty-four".