68772893280 has 768 divisors, whose sum is σ = 276678291456. Its totient is φ = 13974405120.

The previous prime is 68772893263. The next prime is 68772893309. The reversal of 68772893280 is 8239827786.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 141217197 + ... + 141217683.

It is an arithmetic number, because the mean of its divisors is an integer number (360258192).

Almost surely, 2^68772893280 is an apocalyptic number.

68772893280 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 68772893280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138339145728).

68772893280 is an abundant number, since it is smaller than the sum of its proper divisors (207905398176).

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

68772893280 is a wasteful number, since it uses less digits than its factorization.

68772893280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639 (or 631 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 68772893280 in words is "sixty-eight billion, seven hundred seventy-two million, eight hundred ninety-three thousand, two hundred eighty".