68842733535 has 24 divisors (see below), whose sum is σ = 125607796080. Its totient is φ = 34783696512.

The previous prime is 68842733513. The next prime is 68842733539. The reversal of 68842733535 is 53533724886.

It is a happy number.

68842733535 is a `hidden beast` number, since 6 + 8 + 84 + 27 + 3 + 3 + 535 = 666.

It is not a de Polignac number, because 68842733535 - 2¹⁷ = 68842602463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68842733539) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40258054 + ... + 40259763.

It is an arithmetic number, because the mean of its divisors is an integer number (5233658170).

Almost surely, 2^68842733535 is an apocalyptic number.

68842733535 is a deficient number, since it is larger than the sum of its proper divisors (56765062545).

68842733535 is a wasteful number, since it uses less digits than its factorization.

68842733535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80517847 (or 80517844 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 68842733535 in words is "sixty-eight billion, eight hundred forty-two million, seven hundred thirty-three thousand, five hundred thirty-five".