84843389513 has 4 divisors (see below), whose sum is σ = 84973318788. Its totient is φ = 84713460240.

The previous prime is 84843389503. The next prime is 84843389531. The reversal of 84843389513 is 31598334848.

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 26369862544 + 58473526969 = 162388^2 + 241813^2 .

It is a cyclic number.

It is not a de Polignac number, because 84843389513 - 2³⁴ = 67663520329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84843389503) 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, 64963658 + ... + 64964963.

It is an arithmetic number, because the mean of its divisors is an integer number (21243329697).

Almost surely, 2^84843389513 is an apocalyptic number.

It is an amenable number.

84843389513 is a deficient number, since it is larger than the sum of its proper divisors (129929275).

84843389513 is a wasteful number, since it uses less digits than its factorization.

84843389513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129929274.

The product of its digits is 9953280, while the sum is 56.

The spelling of 84843389513 in words is "eighty-four billion, eight hundred forty-three million, three hundred eighty-nine thousand, five hundred thirteen".