7975049866 has 16 divisors (see below), whose sum is σ = 13864072320. Its totient is φ = 3369738960.

The previous prime is 7975049861. The next prime is 7975049879. The reversal of 7975049866 is 6689405797.

It is not an unprimeable number, because it can be changed into a prime (7975049861) 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, 4010601 + ... + 4012588.

It is an arithmetic number, because the mean of its divisors is an integer number (866504520).

Almost surely, 2^7975049866 is an apocalyptic number.

7975049866 is a deficient number, since it is larger than the sum of its proper divisors (5889022454).

7975049866 is a wasteful number, since it uses less digits than its factorization.

7975049866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8023269.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The square root of 7975049866 is about 89303.1346930218. The cubic root of 7975049866 is about 1997.9186569235.

The spelling of 7975049866 in words is "seven billion, nine hundred seventy-five million, forty-nine thousand, eight hundred sixty-six".