7863140890 has 64 divisors (see below), whose sum is σ = 15801827328. Its totient is φ = 2792641600.

The previous prime is 7863140851. The next prime is 7863140941. The reversal of 7863140890 is 980413687.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7863140890.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3033495 + ... + 3036085.

It is an arithmetic number, because the mean of its divisors is an integer number (246903552).

Almost surely, 2^7863140890 is an apocalyptic number.

7863140890 is an abundant number, since it is smaller than the sum of its proper divisors (7938686438).

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

7863140890 is a wasteful number, since it uses less digits than its factorization.

7863140890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3243.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 7863140890 is about 88674.3530565631. The cubic root of 7863140890 is about 1988.5294127504.

The spelling of 7863140890 in words is "seven billion, eight hundred sixty-three million, one hundred forty thousand, eight hundred ninety".