83563919999 has 8 divisors (see below), whose sum is σ = 99653867520. Its totient is φ = 68512033656.

The previous prime is 83563919963. The next prime is 83563920001. The reversal of 83563919999 is 99991936538.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83563919999 - 2¹⁶ = 83563854463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83563919909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259515119 + ... + 259515440.

It is an arithmetic number, because the mean of its divisors is an integer number (12456733440).

Almost surely, 2^83563919999 is an apocalyptic number.

83563919999 is a deficient number, since it is larger than the sum of its proper divisors (16089947521).

83563919999 is a wasteful number, since it uses less digits than its factorization.

83563919999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519030589.

The product of its digits is 127545840, while the sum is 71.

The spelling of 83563919999 in words is "eighty-three billion, five hundred sixty-three million, nine hundred nineteen thousand, nine hundred ninety-nine".