83421212438 has 16 divisors (see below), whose sum is σ = 128551147200. Its totient is φ = 40576660800.

The previous prime is 83421212429. The next prime is 83421212449.

It is a happy number.

83421212438 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 7 ways as a sum of consecutive naturals, for example, 1428878 + ... + 1486113.

It is an arithmetic number, because the mean of its divisors is an integer number (8034446700).

Almost surely, 2^83421212438 is an apocalyptic number.

83421212438 is a deficient number, since it is larger than the sum of its proper divisors (45129934762).

83421212438 is a wasteful number, since it uses less digits than its factorization.

83421212438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915383.

The product of its digits is 73728, while the sum is 38.

The spelling of 83421212438 in words is "eighty-three billion, four hundred twenty-one million, two hundred twelve thousand, four hundred thirty-eight".