842508426689 has 8 divisors (see below), whose sum is σ = 900728599680. Its totient is φ = 785250570816.

The previous prime is 842508426667. The next prime is 842508426701. The reversal of 842508426689 is 986624805248.

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

It is not a de Polignac number, because 842508426689 - 2²⁰ = 842507378113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842508416689) 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, 240577469 + ... + 240580970.

It is an arithmetic number, because the mean of its divisors is an integer number (112591074960).

Almost surely, 2^842508426689 is an apocalyptic number.

It is an amenable number.

842508426689 is a deficient number, since it is larger than the sum of its proper divisors (58220172991).

842508426689 is a wasteful number, since it uses less digits than its factorization.

842508426689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481158559.

The product of its (nonzero) digits is 53084160, while the sum is 62.

The spelling of 842508426689 in words is "eight hundred forty-two billion, five hundred eight million, four hundred twenty-six thousand, six hundred eighty-nine".