842899338287 has 4 divisors (see below), whose sum is σ = 842910935736. Its totient is φ = 842887740840.

The previous prime is 842899338277. The next prime is 842899338301. The reversal of 842899338287 is 782833998248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842899338287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 842899338287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842899338277) 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, 5689013 + ... + 5835294.

It is an arithmetic number, because the mean of its divisors is an integer number (210727733934).

Almost surely, 2^842899338287 is an apocalyptic number.

842899338287 is a deficient number, since it is larger than the sum of its proper divisors (11597449).

842899338287 is a wasteful number, since it uses less digits than its factorization.

842899338287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597448.

The product of its digits is 334430208, while the sum is 71.

The spelling of 842899338287 in words is "eight hundred forty-two billion, eight hundred ninety-nine million, three hundred thirty-eight thousand, two hundred eighty-seven".