84254720843 has 4 divisors (see below), whose sum is σ = 84678111600. Its totient is φ = 83831330088.

The previous prime is 84254720827. The next prime is 84254720881. The reversal of 84254720843 is 34802745248.

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

It is a cyclic number.

It is not a de Polignac number, because 84254720843 - 2⁴ = 84254720827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84254720243) 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, 211695080 + ... + 211695477.

It is an arithmetic number, because the mean of its divisors is an integer number (21169527900).

Almost surely, 2^84254720843 is an apocalyptic number.

84254720843 is a deficient number, since it is larger than the sum of its proper divisors (423390757).

84254720843 is a wasteful number, since it uses less digits than its factorization.

84254720843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423390756.

The product of its (nonzero) digits is 1720320, while the sum is 47.

The spelling of 84254720843 in words is "eighty-four billion, two hundred fifty-four million, seven hundred twenty thousand, eight hundred forty-three".