83898889838 has 32 divisors (see below), whose sum is σ = 135730598400. Its totient is φ = 38749371264.

The previous prime is 83898889807. The next prime is 83898889859.

83898889838 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207931 + ... + 1275497.

It is an arithmetic number, because the mean of its divisors is an integer number (4241581200).

Almost surely, 2^83898889838 is an apocalyptic number.

83898889838 is a deficient number, since it is larger than the sum of its proper divisors (51831708562).

83898889838 is a wasteful number, since it uses less digits than its factorization.

83898889838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68264.

The product of its digits is 1528823808, while the sum is 80.

The spelling of 83898889838 in words is "eighty-three billion, eight hundred ninety-eight million, eight hundred eighty-nine thousand, eight hundred thirty-eight".