68726656146 has 16 divisors (see below), whose sum is σ = 140805832608. Its totient is φ = 22350132000.

The previous prime is 68726656069. The next prime is 68726656217. The reversal of 68726656146 is 64165662786.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139688080 + ... + 139688571.

It is an arithmetic number, because the mean of its divisors is an integer number (8800364538).

Almost surely, 2^68726656146 is an apocalyptic number.

68726656146 is an abundant number, since it is smaller than the sum of its proper divisors (72079176462).

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

68726656146 is a wasteful number, since it uses less digits than its factorization.

68726656146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279376697.

The product of its digits is 17418240, while the sum is 57.

The spelling of 68726656146 in words is "sixty-eight billion, seven hundred twenty-six million, six hundred fifty-six thousand, one hundred forty-six".