85434122443 has 4 divisors (see below), whose sum is σ = 85442719600. Its totient is φ = 85425525288.

The previous prime is 85434122441. The next prime is 85434122447. The reversal of 85434122443 is 34422143458.

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 85434122443 - 2¹ = 85434122441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85434122396 and 85434122405.

It is not an unprimeable number, because it can be changed into a prime (85434122441) 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, 4283655 + ... + 4303552.

It is an arithmetic number, because the mean of its divisors is an integer number (21360679900).

Almost surely, 2^85434122443 is an apocalyptic number.

85434122443 is a deficient number, since it is larger than the sum of its proper divisors (8597157).

85434122443 is an equidigital number, since it uses as much as digits as its factorization.

85434122443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8597156.

The product of its digits is 368640, while the sum is 40.

The spelling of 85434122443 in words is "eighty-five billion, four hundred thirty-four million, one hundred twenty-two thousand, four hundred forty-three".