83328890643 has 32 divisors (see below), whose sum is σ = 124621516800. Its totient is φ = 55026131328.

The previous prime is 83328890641. The next prime is 83328890651. The reversal of 83328890643 is 34609882338.

It is a happy number.

It is not a de Polignac number, because 83328890643 - 2¹ = 83328890641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83328890643.

It is not an unprimeable number, because it can be changed into a prime (83328890641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5358946 + ... + 5374472.

It is an arithmetic number, because the mean of its divisors is an integer number (3894422400).

Almost surely, 2^83328890643 is an apocalyptic number.

83328890643 is a deficient number, since it is larger than the sum of its proper divisors (41292626157).

83328890643 is a wasteful number, since it uses less digits than its factorization.

83328890643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17408 (or 17402 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 83328890643 in words is "eighty-three billion, three hundred twenty-eight million, eight hundred ninety thousand, six hundred forty-three".