840011110049 has 4 divisors (see below), whose sum is σ = 845041116864. Its totient is φ = 834981103236.

The previous prime is 840011110033. The next prime is 840011110051. The reversal of 840011110049 is 940011110048.

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 a cyclic number.

It is not a de Polignac number, because 840011110049 - 2⁴ = 840011110033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (840011110079) 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, 2515003157 + ... + 2515003490.

It is an arithmetic number, because the mean of its divisors is an integer number (211260279216).

Almost surely, 2^840011110049 is an apocalyptic number.

It is an amenable number.

840011110049 is a deficient number, since it is larger than the sum of its proper divisors (5030006815).

840011110049 is a wasteful number, since it uses less digits than its factorization.

840011110049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030006814.

The product of its (nonzero) digits is 1152, while the sum is 29.

Subtracting 840011110049 from its reverse (940011110048), we obtain a palindrome (99999999999).

The spelling of 840011110049 in words is "eight hundred forty billion, eleven million, one hundred ten thousand, forty-nine".