840132840413 has 2 divisors, whose sum is σ = 840132840414. Its totient is φ = 840132840412.

The previous prime is 840132840409. The next prime is 840132840427. The reversal of 840132840413 is 314048231048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835884147289 + 4248693124 = 914267^2 + 65182^2 .

It is a cyclic number.

It is not a de Polignac number, because 840132840413 - 2² = 840132840409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840132800413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420066420206 + 420066420207.

It is an arithmetic number, because the mean of its divisors is an integer number (420066420207).

Almost surely, 2^840132840413 is an apocalyptic number.

It is an amenable number.

840132840413 is a deficient number, since it is larger than the sum of its proper divisors (1).

840132840413 is an equidigital number, since it uses as much as digits as its factorization.

840132840413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 840132840413 in words is "eight hundred forty billion, one hundred thirty-two million, eight hundred forty thousand, four hundred thirteen".