906434343413321 has 4 divisors (see below), whose sum is σ = 907401722649492. Its totient is φ = 905466964177152.

The previous prime is 906434343413243. The next prime is 906434343413371. The reversal of 906434343413321 is 123314343434609.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 165155526151225 + 741278817262096 = 12851285^2 + 27226436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-906434343413321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 906434343413321.

It is not an unprimeable number, because it can be changed into a prime (906434343413371) 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, 483689616680 + ... + 483689618553.

It is an arithmetic number, because the mean of its divisors is an integer number (226850430662373).

Almost surely, 2^{906434343413321} is an apocalyptic number.

It is an amenable number.

906434343413321 is a deficient number, since it is larger than the sum of its proper divisors (967379236171).

906434343413321 is an equidigital number, since it uses as much as digits as its factorization.

906434343413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967379236170.

The product of its (nonzero) digits is 6718464, while the sum is 50.

The spelling of 906434343413321 in words is "nine hundred six trillion, four hundred thirty-four billion, three hundred forty-three million, four hundred thirteen thousand, three hundred twenty-one".