68220075400 has 48 divisors (see below), whose sum is σ = 158852667600. Its totient is φ = 27246569280.

The previous prime is 68220075367. The next prime is 68220075409. The reversal of 68220075400 is 457002286.

It is not an unprimeable number, because it can be changed into a prime (68220075409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127002 + ... + 390601.

It is an arithmetic number, because the mean of its divisors is an integer number (3309430575).

Almost surely, 2^68220075400 is an apocalyptic number.

It is an amenable number.

68220075400 is an abundant number, since it is smaller than the sum of its proper divisors (90632592200).

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

68220075400 is a wasteful number, since it uses less digits than its factorization.

68220075400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518278 (or 518269 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 68220075400 its reverse (457002286), we get a palindrome (68677077686).

The spelling of 68220075400 in words is "sixty-eight billion, two hundred twenty million, seventy-five thousand, four hundred".