68328334540 has 48 divisors (see below), whose sum is σ = 146075950944. Its totient is φ = 26842982400.

The previous prime is 68328334531. The next prime is 68328334541. The reversal of 68328334540 is 4543382386.

It is a super-2 number, since 2×68328334540² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68328334541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119710 + ... + 388570.

It is an arithmetic number, because the mean of its divisors is an integer number (3043248978).

Almost surely, 2^68328334540 is an apocalyptic number.

It is an amenable number.

68328334540 is an abundant number, since it is smaller than the sum of its proper divisors (77747616404).

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

68328334540 is a wasteful number, since it uses less digits than its factorization.

68328334540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269098 (or 269096 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 68328334540 in words is "sixty-eight billion, three hundred twenty-eight million, three hundred thirty-four thousand, five hundred forty".