68825751240 has 256 divisors, whose sum is σ = 223556889600. Its totient is φ = 16896881664.

The previous prime is 68825751209. The next prime is 68825751257. The reversal of 68825751240 is 4215752886.

It is a self number, because there is not a number n which added to its sum of digits gives 68825751240.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12927219 + ... + 12932541.

It is an arithmetic number, because the mean of its divisors is an integer number (873269100).

Almost surely, 2^68825751240 is an apocalyptic number.

68825751240 is a gapful number since it is divisible by the number (60) 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 68825751240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111778444800).

68825751240 is an abundant number, since it is smaller than the sum of its proper divisors (154731138360).

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

68825751240 is a wasteful number, since it uses less digits than its factorization.

68825751240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516 (or 5512 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 68825751240 in words is "sixty-eight billion, eight hundred twenty-five million, seven hundred fifty-one thousand, two hundred forty".