842166675425 has 6 divisors (see below), whose sum is σ = 1044286677558. Its totient is φ = 673733340320.

The previous prime is 842166675409. The next prime is 842166675443. The reversal of 842166675425 is 524576661248.

It can be written as a sum of positive squares in 3 ways, for example, as 2097273616 + 840069401809 = 45796^2 + 916553^2 .

It is not a de Polignac number, because 842166675425 - 2⁴ = 842166675409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16843333484 + ... + 16843333533.

It is an arithmetic number, because the mean of its divisors is an integer number (174047779593).

Almost surely, 2^842166675425 is an apocalyptic number.

It is an amenable number.

842166675425 is a deficient number, since it is larger than the sum of its proper divisors (202120002133).

842166675425 is a wasteful number, since it uses less digits than its factorization.

842166675425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33686667027 (or 33686667022 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 56.

The spelling of 842166675425 in words is "eight hundred forty-two billion, one hundred sixty-six million, six hundred seventy-five thousand, four hundred twenty-five".