7911985222 has 16 divisors (see below), whose sum is σ = 11925172512. Its totient is φ = 3936958720.

The previous prime is 7911985201. The next prime is 7911985253. The reversal of 7911985222 is 2225891197.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550998 + ... + 565174.

It is an arithmetic number, because the mean of its divisors is an integer number (745323282).

Almost surely, 2^7911985222 is an apocalyptic number.

7911985222 is a deficient number, since it is larger than the sum of its proper divisors (4013187290).

7911985222 is a wasteful number, since it uses less digits than its factorization.

7911985222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15503.

The product of its digits is 181440, while the sum is 46.

The square root of 7911985222 is about 88949.3407620315. The cubic root of 7911985222 is about 1992.6383716266.

The spelling of 7911985222 in words is "seven billion, nine hundred eleven million, nine hundred eighty-five thousand, two hundred twenty-two".