68785458786 has 72 divisors (see below), whose sum is σ = 173451806892. Its totient is φ = 19617945600.

The previous prime is 68785458773. The next prime is 68785458787.

68785458786 is a `hidden beast` number, since 6 + 8 + 7 + 8 + 545 + 8 + 78 + 6 = 666.

68785458786 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 66987274761 + 1798184025 = 258819^2 + 42405^2 .

It is not an unprimeable number, because it can be changed into a prime (68785458787) 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 35 ways as a sum of consecutive naturals, for example, 891855 + ... + 965906.

Almost surely, 2^68785458786 is an apocalyptic number.

68785458786 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68785458786 is an abundant number, since it is smaller than the sum of its proper divisors (104666348106).

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

68785458786 is a wasteful number, since it uses less digits than its factorization.

68785458786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1857808 (or 1857794 counting only the distinct ones).

The product of its digits is 722534400, while the sum is 72.

The spelling of 68785458786 in words is "sixty-eight billion, seven hundred eighty-five million, four hundred fifty-eight thousand, seven hundred eighty-six".