68388777000 has 96 divisors (see below), whose sum is σ = 231154096680. Its totient is φ = 18237004800.

The previous prime is 68388776971. The next prime is 68388777013. The reversal of 68388777000 is 77788386.

It can be written as a sum of positive squares in 4 ways, for example, as 38327459076 + 30061317924 = 195774^2 + 173382^2 .

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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, 3790377 + ... + 3808376.

Almost surely, 2^68388777000 is an apocalyptic number.

68388777000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68388777000 is an abundant number, since it is smaller than the sum of its proper divisors (162765319680).

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

68388777000 is a wasteful number, since it uses less digits than its factorization.

68388777000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7598780 (or 7598763 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 68388777000 in words is "sixty-eight billion, three hundred eighty-eight million, seven hundred seventy-seven thousand".