912213105869 has 8 divisors (see below), whose sum is σ = 984199218072. Its totient is φ = 840486404160.

The previous prime is 912213105857. The next prime is 912213105899. The reversal of 912213105869 is 968501312219.

It can be written as a sum of positive squares in 4 ways, for example, as 130804969 + 912082300900 = 11437^2 + 955030^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 912213105869 - 2⁸ = 912213105613 is a prime.

It is a super-2 number, since 2×912213105869² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912213105899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64845314 + ... + 64859379.

It is an arithmetic number, because the mean of its divisors is an integer number (123024902259).

Almost surely, 2^912213105869 is an apocalyptic number.

It is an amenable number.

912213105869 is a deficient number, since it is larger than the sum of its proper divisors (71986112203).

912213105869 is a wasteful number, since it uses less digits than its factorization.

912213105869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129705247.

The product of its (nonzero) digits is 233280, while the sum is 47.

The spelling of 912213105869 in words is "nine hundred twelve billion, two hundred thirteen million, one hundred five thousand, eight hundred sixty-nine".