68277785040 has 120 divisors (see below), whose sum is σ = 232202280960. Its totient is φ = 17976920832.

The previous prime is 68277785039. The next prime is 68277785077. The reversal of 68277785040 is 4058777286.

It is a happy number.

68277785040 is a `hidden beast` number, since 68 + 2 + 7 + 7 + 78 + 504 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

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, 543312 + ... + 657071.

It is an arithmetic number, because the mean of its divisors is an integer number (1935019008).

Almost surely, 2^68277785040 is an apocalyptic number.

68277785040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68277785040 is an abundant number, since it is smaller than the sum of its proper divisors (163924495920).

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

68277785040 is a wasteful number, since it uses less digits than its factorization.

68277785040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200481 (or 1200472 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 68277785040 in words is "sixty-eight billion, two hundred seventy-seven million, seven hundred eighty-five thousand, forty".