84079423481 has 4 divisors (see below), whose sum is σ = 84263405172. Its totient is φ = 83895441792.

The previous prime is 84079423471. The next prime is 84079423499. The reversal of 84079423481 is 18432497048.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55818787600 + 28260635881 = 236260^2 + 168109^2 .

It is a cyclic number.

It is not a de Polignac number, because 84079423481 - 2¹⁸ = 84079161337 is a prime.

It is a super-2 number, since 2×84079423481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84079423411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91990160 + ... + 91991073.

It is an arithmetic number, because the mean of its divisors is an integer number (21065851293).

Almost surely, 2^84079423481 is an apocalyptic number.

It is an amenable number.

84079423481 is a deficient number, since it is larger than the sum of its proper divisors (183981691).

84079423481 is a wasteful number, since it uses less digits than its factorization.

84079423481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183981690.

The product of its (nonzero) digits is 1548288, while the sum is 50.

The spelling of 84079423481 in words is "eighty-four billion, seventy-nine million, four hundred twenty-three thousand, four hundred eighty-one".