533536981791 has 16 divisors (see below), whose sum is σ = 783588299520. Its totient is φ = 320216368320.

The previous prime is 533536981751. The next prime is 533536981823. The reversal of 533536981791 is 197189635335.

It is not a de Polignac number, because 533536981791 - 2⁶ = 533536981727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533536981751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78481006 + ... + 78487803.

It is an arithmetic number, because the mean of its divisors is an integer number (48974268720).

Almost surely, 2^533536981791 is an apocalyptic number.

533536981791 is a deficient number, since it is larger than the sum of its proper divisors (250051317729).

533536981791 is a wasteful number, since it uses less digits than its factorization.

533536981791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156968926.

The product of its digits is 18370800, while the sum is 60.

The spelling of 533536981791 in words is "five hundred thirty-three billion, five hundred thirty-six million, nine hundred eighty-one thousand, seven hundred ninety-one".