83328421449 has 32 divisors (see below), whose sum is σ = 136883625984. Its totient is φ = 43908598080.

The previous prime is 83328421411. The next prime is 83328421483. The reversal of 83328421449 is 94412482338.

It is a de Polignac number, because none of the positive numbers 2^k-83328421449 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 83328421398 and 83328421407.

It is not an unprimeable number, because it can be changed into a prime (83328421409) 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, 113104 + ... + 423614.

It is an arithmetic number, because the mean of its divisors is an integer number (4277613312).

Almost surely, 2^83328421449 is an apocalyptic number.

It is an amenable number.

83328421449 is a deficient number, since it is larger than the sum of its proper divisors (53555204535).

83328421449 is a wasteful number, since it uses less digits than its factorization.

83328421449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311517.

The product of its digits is 1327104, while the sum is 48.

The spelling of 83328421449 in words is "eighty-three billion, three hundred twenty-eight million, four hundred twenty-one thousand, four hundred forty-nine".