84396259439 has 8 divisors (see below), whose sum is σ = 85649988720. Its totient is φ = 83145168576.

The previous prime is 84396259427. The next prime is 84396259459. The reversal of 84396259439 is 93495269348.

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

It is not a de Polignac number, because 84396259439 - 2¹² = 84396255343 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 (84396259459) 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, 595109 + ... + 723150.

It is an arithmetic number, because the mean of its divisors is an integer number (10706248590).

Almost surely, 2^84396259439 is an apocalyptic number.

84396259439 is a deficient number, since it is larger than the sum of its proper divisors (1253729281).

84396259439 is a wasteful number, since it uses less digits than its factorization.

84396259439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319209.

The product of its digits is 50388480, while the sum is 62.

Subtracting 84396259439 from its reverse (93495269348), we obtain a palindrome (9099009909).

The spelling of 84396259439 in words is "eighty-four billion, three hundred ninety-six million, two hundred fifty-nine thousand, four hundred thirty-nine".