68244921360 has 320 divisors, whose sum is σ = 293069813760. Its totient is φ = 14180728320.

The previous prime is 68244921347. The next prime is 68244921389. The reversal of 68244921360 is 6312944286.

68244921360 is a `hidden beast` number, since 6 + 8 + 24 + 492 + 136 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 38842 + ... + 371481.

It is an arithmetic number, because the mean of its divisors is an integer number (915843168).

Almost surely, 2^68244921360 is an apocalyptic number.

68244921360 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 68244921360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146534906880).

68244921360 is an abundant number, since it is smaller than the sum of its proper divisors (224824892400).

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

68244921360 is a wasteful number, since it uses less digits than its factorization.

68244921360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410363 (or 410351 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 68244921360 in words is "sixty-eight billion, two hundred forty-four million, nine hundred twenty-one thousand, three hundred sixty".