201326457582 has 40 divisors (see below), whose sum is σ = 452459154576. Its totient is φ = 66909665088.

The previous prime is 201326457557. The next prime is 201326457587. The reversal of 201326457582 is 285754623102.

201326457582 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 2 + 64 + 5 + 7 + 582 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201326457587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1789258 + ... + 1898445.

Almost surely, 2^201326457582 is an apocalyptic number.

201326457582 is an abundant number, since it is smaller than the sum of its proper divisors (251132696994).

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

201326457582 is a wasteful number, since it uses less digits than its factorization.

201326457582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3688054 (or 3688045 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 201326457582 in words is "two hundred one billion, three hundred twenty-six million, four hundred fifty-seven thousand, five hundred eighty-two".