840132840412 has 12 divisors (see below), whose sum is σ = 1495151665560. Its totient is φ = 412946650256.

The previous prime is 840132840409. The next prime is 840132840413. The reversal of 840132840412 is 214048231048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840132840413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779942223 + ... + 1779942694.

It is an arithmetic number, because the mean of its divisors is an integer number (124595972130).

Almost surely, 2^840132840412 is an apocalyptic number.

It is an amenable number.

840132840412 is a deficient number, since it is larger than the sum of its proper divisors (655018825148).

840132840412 is a wasteful number, since it uses less digits than its factorization.

840132840412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559884980 (or 3559884978 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The spelling of 840132840412 in words is "eight hundred forty billion, one hundred thirty-two million, eight hundred forty thousand, four hundred twelve".