840231740117 has 24 divisors (see below), whose sum is σ = 1069012094400. Its totient is φ = 654682157640.

The previous prime is 840231740099. The next prime is 840231740129. The reversal of 840231740117 is 711047132048.

It is not a de Polignac number, because 840231740117 - 2¹² = 840231736021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840231740137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56297018 + ... + 56311940.

It is an arithmetic number, because the mean of its divisors is an integer number (44542170600).

Almost surely, 2^840231740117 is an apocalyptic number.

It is an amenable number.

840231740117 is a deficient number, since it is larger than the sum of its proper divisors (228780354283).

840231740117 is an frugal number, since it uses more digits than its factorization.

840231740117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29878 (or 14941 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The spelling of 840231740117 in words is "eight hundred forty billion, two hundred thirty-one million, seven hundred forty thousand, one hundred seventeen".