84219426503231 has 4 divisors (see below), whose sum is σ = 84219444918000. Its totient is φ = 84219408088464.

The previous prime is 84219426503227. The next prime is 84219426503287. The reversal of 84219426503231 is 13230562491248.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 84219426503231 - 2² = 84219426503227 is a prime.

It is a super-2 number, since 2×84219426503231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84219426503231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84219426503131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3484715 + ... + 13438083.

It is an arithmetic number, because the mean of its divisors is an integer number (21054861229500).

Almost surely, 2^{84219426503231} is an apocalyptic number.

84219426503231 is a deficient number, since it is larger than the sum of its proper divisors (18414769).

84219426503231 is an equidigital number, since it uses as much as digits as its factorization.

84219426503231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18414768.

The product of its (nonzero) digits is 2488320, while the sum is 50.

Adding to 84219426503231 its reverse (13230562491248), we get a palindrome (97449988994479).

The spelling of 84219426503231 in words is "eighty-four trillion, two hundred nineteen billion, four hundred twenty-six million, five hundred three thousand, two hundred thirty-one".