67982857758 has 96 divisors (see below), whose sum is σ = 153998319072. Its totient is φ = 21653049600.

The previous prime is 67982857757. The next prime is 67982857837. The reversal of 67982857758 is 85775828976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67982857757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44403453 + ... + 44404983.

It is an arithmetic number, because the mean of its divisors is an integer number (1604149157).

Almost surely, 2^67982857758 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67982857758, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76999159536).

67982857758 is an abundant number, since it is smaller than the sum of its proper divisors (86015461314).

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

67982857758 is a wasteful number, since it uses less digits than its factorization.

67982857758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730 (or 2727 counting only the distinct ones).

The product of its digits is 474163200, while the sum is 72.

The spelling of 67982857758 in words is "sixty-seven billion, nine hundred eighty-two million, eight hundred fifty-seven thousand, seven hundred fifty-eight".