68099020800 has 144 divisors (see below), whose sum is σ = 225126294120. Its totient is φ = 18159697920.

The previous prime is 68099020783. The next prime is 68099020811. The reversal of 68099020800 is 802099086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68077 + ... + 375276.

Almost surely, 2^68099020800 is an apocalyptic number.

68099020800 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 68099020800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112563147060).

68099020800 is an abundant number, since it is smaller than the sum of its proper divisors (157027273320).

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

68099020800 is a wasteful number, since it uses less digits than its factorization.

68099020800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443388 (or 443363 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 68099020800 in words is "sixty-eight billion, ninety-nine million, twenty thousand, eight hundred".