68525721600 has 1152 divisors, whose sum is σ = 287801579520. Its totient is φ = 14014218240.

The previous prime is 68525721599. The next prime is 68525721629. The reversal of 68525721600 is 612752586.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 420403119 + ... + 420403281.

It is an arithmetic number, because the mean of its divisors is an integer number (249827760).

Almost surely, 2^68525721600 is an apocalyptic number.

68525721600 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 68525721600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143900789760).

68525721600 is an abundant number, since it is smaller than the sum of its proper divisors (219275857920).

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

68525721600 is a wasteful number, since it uses less digits than its factorization.

68525721600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 68525721600 in words is "sixty-eight billion, five hundred twenty-five million, seven hundred twenty-one thousand, six hundred".