68399411400 has 144 divisors (see below), whose sum is σ = 229876358400. Its totient is φ = 18226477440.

The previous prime is 68399411393. The next prime is 68399411459. The reversal of 68399411400 is 411499386.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2576997 + ... + 2603403.

It is an arithmetic number, because the mean of its divisors is an integer number (1596363600).

Almost surely, 2^68399411400 is an apocalyptic number.

68399411400 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 68399411400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114938179200).

68399411400 is an abundant number, since it is smaller than the sum of its proper divisors (161476947000).

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

68399411400 is a wasteful number, since it uses less digits than its factorization.

68399411400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27868 (or 27856 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 68399411400 in words is "sixty-eight billion, three hundred ninety-nine million, four hundred eleven thousand, four hundred".