9851213622 has 32 divisors (see below), whose sum is σ = 19759848192. Its totient is φ = 3274183584.

The previous prime is 9851213599. The next prime is 9851213633. The reversal of 9851213622 is 2263121589.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5095368 + ... + 5097300.

It is an arithmetic number, because the mean of its divisors is an integer number (617495256).

Almost surely, 2^9851213622 is an apocalyptic number.

9851213622 is an abundant number, since it is smaller than the sum of its proper divisors (9908634570).

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

9851213622 is a wasteful number, since it uses less digits than its factorization.

9851213622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972.

The product of its digits is 51840, while the sum is 39.

The square root of 9851213622 is about 99253.2801573832. The cubic root of 9851213622 is about 2143.6962369628.

The spelling of 9851213622 in words is "nine billion, eight hundred fifty-one million, two hundred thirteen thousand, six hundred twenty-two".