68443076506 has 32 divisors (see below), whose sum is σ = 119638632960. Its totient is φ = 28756705536.

The previous prime is 68443076447. The next prime is 68443076521. The reversal of 68443076506 is 60567034486.

It is a self number, because there is not a number n which added to its sum of digits gives 68443076506.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926815 + ... + 997933.

It is an arithmetic number, because the mean of its divisors is an integer number (3738707280).

Almost surely, 2^68443076506 is an apocalyptic number.

68443076506 is a deficient number, since it is larger than the sum of its proper divisors (51195556454).

68443076506 is a wasteful number, since it uses less digits than its factorization.

68443076506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72478.

The product of its (nonzero) digits is 2903040, while the sum is 49.

The spelling of 68443076506 in words is "sixty-eight billion, four hundred forty-three million, seventy-six thousand, five hundred six".