68722420506 has 16 divisors (see below), whose sum is σ = 137458018848. Its totient is φ = 22905277200.

The previous prime is 68722420499. The next prime is 68722420511. The reversal of 68722420506 is 60502422786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480625 + ... + 606996.

It is an arithmetic number, because the mean of its divisors is an integer number (8591126178).

Almost surely, 2^68722420506 is an apocalyptic number.

68722420506 is an abundant number, since it is smaller than the sum of its proper divisors (68735598342).

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

68722420506 is a wasteful number, since it uses less digits than its factorization.

68722420506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098157.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 68722420506 in words is "sixty-eight billion, seven hundred twenty-two million, four hundred twenty thousand, five hundred six".