68851400718 has 32 divisors (see below), whose sum is σ = 137895690240. Its totient is φ = 22918347360.

The previous prime is 68851400713. The next prime is 68851400719. The reversal of 68851400718 is 81700415886.

It is a happy number.

It is a super-2 number, since 2×68851400718² (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 (68851400713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19845888 + ... + 19849356.

It is an arithmetic number, because the mean of its divisors is an integer number (4309240320).

Almost surely, 2^68851400718 is an apocalyptic number.

68851400718 is an abundant number, since it is smaller than the sum of its proper divisors (69044289522).

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

68851400718 is a wasteful number, since it uses less digits than its factorization.

68851400718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7152.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 68851400718 in words is "sixty-eight billion, eight hundred fifty-one million, four hundred thousand, seven hundred eighteen".