842161619 has 8 divisors (see below), whose sum is σ = 908539632. Its totient is φ = 776011680.

The previous prime is 842161613. The next prime is 842161667. The reversal of 842161619 is 916161248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 842161619 - 2²⁸ = 573726163 is a prime.

It is a super-2 number, since 2×842161619² = 1418472385033402322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842161613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49304 + ... + 64149.

It is an arithmetic number, because the mean of its divisors is an integer number (113567454).

Almost surely, 2^842161619 is an apocalyptic number.

842161619 is a deficient number, since it is larger than the sum of its proper divisors (66378013).

842161619 is a wasteful number, since it uses less digits than its factorization.

842161619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114037.

The product of its digits is 20736, while the sum is 38.

The square root of 842161619 is about 29020.0210027491. The cubic root of 842161619 is about 944.3474565281.

The spelling of 842161619 in words is "eight hundred forty-two million, one hundred sixty-one thousand, six hundred nineteen".