68530733236 has 24 divisors (see below), whose sum is σ = 137324569536. Its totient is φ = 29313935040.

The previous prime is 68530733189. The next prime is 68530733237. The reversal of 68530733236 is 63233703586.

It is a super-2 number, since 2×68530733236² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68530733237) 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, 2334286 + ... + 2363461.

It is an arithmetic number, because the mean of its divisors is an integer number (5721857064).

Almost surely, 2^68530733236 is an apocalyptic number.

It is an amenable number.

68530733236 is an abundant number, since it is smaller than the sum of its proper divisors (68793836300).

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

68530733236 is a wasteful number, since it uses less digits than its factorization.

68530733236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4698279 (or 4698277 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 46.

The spelling of 68530733236 in words is "sixty-eight billion, five hundred thirty million, seven hundred thirty-three thousand, two hundred thirty-six".