68647672800 has 864 divisors, whose sum is σ = 301608195840. Its totient is φ = 14758502400.

The previous prime is 68647672789. The next prime is 68647672811. The reversal of 68647672800 is 827674686.

It is an interprime number because it is at equal distance from previous prime (68647672789) and next prime (68647672811).

It is a tau number, because it is divible by the number of its divisors (864).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 43696015 + ... + 43697585.

It is an arithmetic number, because the mean of its divisors is an integer number (349083560).

Almost surely, 2^68647672800 is an apocalyptic number.

68647672800 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 68647672800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150804097920).

68647672800 is an abundant number, since it is smaller than the sum of its proper divisors (232960523040).

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

68647672800 is a wasteful number, since it uses less digits than its factorization.

68647672800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641 (or 1605 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The spelling of 68647672800 in words is "sixty-eight billion, six hundred forty-seven million, six hundred seventy-two thousand, eight hundred".