68981479200 has 576 divisors, whose sum is σ = 255977366400. Its totient is φ = 18147317760.

The previous prime is 68981479123. The next prime is 68981479219. The reversal of 68981479200 is 297418986.

68981479200 is a `hidden beast` number, since 68 + 98 + 1 + 479 + 20 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155714179 + ... + 155714621.

It is an arithmetic number, because the mean of its divisors is an integer number (444405150).

Almost surely, 2^68981479200 is an apocalyptic number.

68981479200 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 68981479200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127988683200).

68981479200 is an abundant number, since it is smaller than the sum of its proper divisors (186995887200).

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

68981479200 is an equidigital number, since it uses as much as digits as its factorization.

68981479200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573 (or 542 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 68981479200 in words is "sixty-eight billion, nine hundred eighty-one million, four hundred seventy-nine thousand, two hundred".