84239818511 has 8 divisors (see below), whose sum is σ = 84665410464. Its totient is φ = 83815119360.

The previous prime is 84239818459. The next prime is 84239818513. The reversal of 84239818511 is 11581893248.

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

It is a cyclic number.

It is not a de Polignac number, because 84239818511 - 2³⁰ = 83166076687 is a prime.

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 84239818511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84239818513) 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, 33611 + ... + 411836.

It is an arithmetic number, because the mean of its divisors is an integer number (10583176308).

Almost surely, 2^84239818511 is an apocalyptic number.

84239818511 is a deficient number, since it is larger than the sum of its proper divisors (425591953).

84239818511 is a wasteful number, since it uses less digits than its factorization.

84239818511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446401.

The product of its digits is 552960, while the sum is 50.

The spelling of 84239818511 in words is "eighty-four billion, two hundred thirty-nine million, eight hundred eighteen thousand, five hundred eleven".