840300477413 has 2 divisors, whose sum is σ = 840300477414. Its totient is φ = 840300477412.

The previous prime is 840300477383. The next prime is 840300477421. The reversal of 840300477413 is 314774003048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505808284804 + 334492192609 = 711202^2 + 578353^2 .

It is a cyclic number.

It is not a de Polignac number, because 840300477413 - 2¹² = 840300473317 is a prime.

It is a super-2 number, since 2×840300477413² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (840300473413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420150238706 + 420150238707.

It is an arithmetic number, because the mean of its divisors is an integer number (420150238707).

Almost surely, 2^840300477413 is an apocalyptic number.

It is an amenable number.

840300477413 is a deficient number, since it is larger than the sum of its proper divisors (1).

840300477413 is an equidigital number, since it uses as much as digits as its factorization.

840300477413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 840300477413 in words is "eight hundred forty billion, three hundred million, four hundred seventy-seven thousand, four hundred thirteen".