98403220643 has 16 divisors (see below), whose sum is σ = 122065305600. Its totient is φ = 77244433056.

The previous prime is 98403220639. The next prime is 98403220649. The reversal of 98403220643 is 34602230489.

It is a happy number.

It is not a de Polignac number, because 98403220643 - 2² = 98403220639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 98403220643.

It is not an unprimeable number, because it can be changed into a prime (98403220649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4245743 + ... + 4268856.

It is an arithmetic number, because the mean of its divisors is an integer number (7629081600).

Almost surely, 2^98403220643 is an apocalyptic number.

98403220643 is a deficient number, since it is larger than the sum of its proper divisors (23662084957).

98403220643 is a wasteful number, since it uses less digits than its factorization.

98403220643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8514746.

The product of its (nonzero) digits is 248832, while the sum is 41.

The spelling of 98403220643 in words is "ninety-eight billion, four hundred three million, two hundred twenty thousand, six hundred forty-three".