68307802000 has 160 divisors (see below), whose sum is σ = 175131871200. Its totient is φ = 25679462400.

The previous prime is 68307801979. The next prime is 68307802027. The reversal of 68307802000 is 20870386.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 19761611776 + 48546190224 = 140576^2 + 220332^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44097226 + ... + 44098774.

It is an arithmetic number, because the mean of its divisors is an integer number (1094574195).

Almost surely, 2^68307802000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68307802000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87565935600).

68307802000 is an abundant number, since it is smaller than the sum of its proper divisors (106824069200).

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

68307802000 is a wasteful number, since it uses less digits than its factorization.

68307802000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886 (or 2870 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 68307802000 in words is "sixty-eight billion, three hundred seven million, eight hundred two thousand".