68283340730 has 48 divisors (see below), whose sum is σ = 135145819872. Its totient is φ = 24821781600.

The previous prime is 68283340687. The next prime is 68283340777. The reversal of 68283340730 is 3704338286.

It is a super-2 number, since 2×68283340730² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4313009 + ... + 4328811.

It is an arithmetic number, because the mean of its divisors is an integer number (2815537914).

Almost surely, 2^68283340730 is an apocalyptic number.

68283340730 is a deficient number, since it is larger than the sum of its proper divisors (66862479142).

68283340730 is a wasteful number, since it uses less digits than its factorization.

68283340730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19403 (or 19392 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 68283340730 in words is "sixty-eight billion, two hundred eighty-three million, three hundred forty thousand, seven hundred thirty".