7865988914 has 48 divisors (see below), whose sum is σ = 14565096000. Its totient is φ = 3169859616.

The previous prime is 7865988869. The next prime is 7865988917. The reversal of 7865988914 is 4198895687.

It is not an unprimeable number, because it can be changed into a prime (7865988917) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 103412 + ... + 162560.

It is an arithmetic number, because the mean of its divisors is an integer number (303439500).

Almost surely, 2^7865988914 is an apocalyptic number.

7865988914 is a deficient number, since it is larger than the sum of its proper divisors (6699107086).

7865988914 is a wasteful number, since it uses less digits than its factorization.

7865988914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59247 (or 59240 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 65.

The square root of 7865988914 is about 88690.4104962876. The cubic root of 7865988914 is about 1988.7694650802.

The spelling of 7865988914 in words is "seven billion, eight hundred sixty-five million, nine hundred eighty-eight thousand, nine hundred fourteen".