7911985223 has 8 divisors (see below), whose sum is σ = 7986182400. Its totient is φ = 7838035128.

The previous prime is 7911985201. The next prime is 7911985253. The reversal of 7911985223 is 3225891197.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7911985223 - 2⁸ = 7911984967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7911985253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2888 + ... + 125826.

It is an arithmetic number, because the mean of its divisors is an integer number (998272800).

Almost surely, 2^7911985223 is an apocalyptic number.

7911985223 is a deficient number, since it is larger than the sum of its proper divisors (74197177).

7911985223 is a wasteful number, since it uses less digits than its factorization.

7911985223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123541.

The product of its digits is 272160, while the sum is 47.

The square root of 7911985223 is about 88949.3407676527. The cubic root of 7911985223 is about 1992.6383717105.

The spelling of 7911985223 in words is "seven billion, nine hundred eleven million, nine hundred eighty-five thousand, two hundred twenty-three".