84166833425 has 12 divisors (see below), whose sum is σ = 104396032140. Its totient is φ = 67314654720.

The previous prime is 84166833419. The next prime is 84166833427. The reversal of 84166833425 is 52433866148.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 24860459584 + 59306373841 = 157672^2 + 243529^2 .

It is not a de Polignac number, because 84166833425 - 2²⁰ = 84165784849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84166833427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 378680 + ... + 558329.

It is an arithmetic number, because the mean of its divisors is an integer number (8699669345).

Almost surely, 2^84166833425 is an apocalyptic number.

It is an amenable number.

84166833425 is a deficient number, since it is larger than the sum of its proper divisors (20229198715).

84166833425 is a wasteful number, since it uses less digits than its factorization.

84166833425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940612 (or 940607 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 50.

The spelling of 84166833425 in words is "eighty-four billion, one hundred sixty-six million, eight hundred thirty-three thousand, four hundred twenty-five".