842033389917 has 4 divisors (see below), whose sum is σ = 1122711186560. Its totient is φ = 561355593276.

The previous prime is 842033389913. The next prime is 842033389933. The reversal of 842033389917 is 719983330248.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 842033389917 - 2² = 842033389913 is a prime.

It is a super-2 number, since 2×842033389917² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842033389913) 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, 140338898317 + ... + 140338898322.

It is an arithmetic number, because the mean of its divisors is an integer number (280677796640).

Almost surely, 2^842033389917 is an apocalyptic number.

It is an amenable number.

842033389917 is a deficient number, since it is larger than the sum of its proper divisors (280677796643).

842033389917 is a wasteful number, since it uses less digits than its factorization.

842033389917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280677796642.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 842033389917 in words is "eight hundred forty-two billion, thirty-three million, three hundred eighty-nine thousand, nine hundred seventeen".