912213105870 has 32 divisors (see below), whose sum is σ = 2388339768960. Its totient is φ = 221142571040.

The previous prime is 912213105857. The next prime is 912213105899. The reversal of 912213105870 is 78501312219.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1382140740 + ... + 1382141399.

It is an arithmetic number, because the mean of its divisors is an integer number (74635617780).

Almost surely, 2^912213105870 is an apocalyptic number.

912213105870 is an abundant number, since it is smaller than the sum of its proper divisors (1476126663090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

912213105870 is a wasteful number, since it uses less digits than its factorization.

912213105870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764282160.

The product of its (nonzero) digits is 30240, while the sum is 39.

The spelling of 912213105870 in words is "nine hundred twelve billion, two hundred thirteen million, one hundred five thousand, eight hundred seventy".