84145616279 has 8 divisors (see below), whose sum is σ = 84938971920. Its totient is φ = 83352649536.

The previous prime is 84145616263. The next prime is 84145616281. The reversal of 84145616279 is 97261654148.

It is a happy number.

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 84145616279 - 2⁴ = 84145616263 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 84145616279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84145616209) 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, 347072 + ... + 537354.

It is an arithmetic number, because the mean of its divisors is an integer number (10617371490).

Almost surely, 2^84145616279 is an apocalyptic number.

84145616279 is a deficient number, since it is larger than the sum of its proper divisors (793355641).

84145616279 is a wasteful number, since it uses less digits than its factorization.

84145616279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194449.

The product of its digits is 2903040, while the sum is 53.

The spelling of 84145616279 in words is "eighty-four billion, one hundred forty-five million, six hundred sixteen thousand, two hundred seventy-nine".