7861143222 has 12 divisors (see below), whose sum is σ = 17032477020. Its totient is φ = 2620381068.

The previous prime is 7861143211. The next prime is 7861143253. The reversal of 7861143222 is 2223411687.

It is a happy number.

7861143222 is a `hidden beast` number, since 7 + 8 + 611 + 4 + 32 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218365072 + ... + 218365107.

It is an arithmetic number, because the mean of its divisors is an integer number (1419373085).

Almost surely, 2^7861143222 is an apocalyptic number.

7861143222 is an abundant number, since it is smaller than the sum of its proper divisors (9171333798).

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

7861143222 is a wasteful number, since it uses less digits than its factorization.

7861143222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436730187 (or 436730184 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 7861143222 is about 88663.0882724034. The cubic root of 7861143222 is about 1988.3610000646.

The spelling of 7861143222 in words is "seven billion, eight hundred sixty-one million, one hundred forty-three thousand, two hundred twenty-two".