84583128005 has 4 divisors (see below), whose sum is σ = 101499753612. Its totient is φ = 67666502400.

The previous prime is 84583127971. The next prime is 84583128029. The reversal of 84583128005 is 50082138548.

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 66866719396 + 17716408609 = 258586^2 + 133103^2 .

It is not a de Polignac number, because 84583128005 - 2¹⁰ = 84583126981 is a prime.

It is a super-2 number, since 2×84583128005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8458312796 + ... + 8458312805.

It is an arithmetic number, because the mean of its divisors is an integer number (25374938403).

Almost surely, 2^84583128005 is an apocalyptic number.

It is an amenable number.

84583128005 is a deficient number, since it is larger than the sum of its proper divisors (16916625607).

84583128005 is a wasteful number, since it uses less digits than its factorization.

84583128005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16916625606.

The product of its (nonzero) digits is 307200, while the sum is 44.

The spelling of 84583128005 in words is "eighty-four billion, five hundred eighty-three million, one hundred twenty-eight thousand, five".