68857827192 has 1152 divisors, whose sum is σ = 267698995200. Its totient is φ = 16166304000.

The previous prime is 68857827169. The next prime is 68857827193. The reversal of 68857827192 is 29172875886.

It is a Harshad number since it is a multiple of its sum of digits (63).

Its product of digits (27095040) is a multiple of the sum of its prime divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68857827193) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 969828517 + ... + 969828587.

It is an arithmetic number, because the mean of its divisors is an integer number (232377600).

Almost surely, 2^68857827192 is an apocalyptic number.

68857827192 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68857827192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133849497600).

68857827192 is an abundant number, since it is smaller than the sum of its proper divisors (198841168008).

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

68857827192 is a wasteful number, since it uses less digits than its factorization.

68857827192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 144 counting only the distinct ones).

The product of its digits is 27095040, while the sum is 63.

The spelling of 68857827192 in words is "sixty-eight billion, eight hundred fifty-seven million, eight hundred twenty-seven thousand, one hundred ninety-two".