7990278892 has 24 divisors (see below), whose sum is σ = 14447526912. Its totient is φ = 3862654800.

The previous prime is 7990278823. The next prime is 7990278893. The reversal of 7990278892 is 2988720997.

It is a self number, because there is not a number n which added to its sum of digits gives 7990278892.

It is not an unprimeable number, because it can be changed into a prime (7990278893) 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 7 ways as a sum of consecutive naturals, for example, 105753 + ... + 164815.

It is an arithmetic number, because the mean of its divisors is an integer number (601980288).

Almost surely, 2^7990278892 is an apocalyptic number.

It is an amenable number.

7990278892 is a deficient number, since it is larger than the sum of its proper divisors (6457248020).

7990278892 is a wasteful number, since it uses less digits than its factorization.

7990278892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60189 (or 60187 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 61.

The square root of 7990278892 is about 89388.3599357321. The cubic root of 7990278892 is about 1999.1895793202.

The spelling of 7990278892 in words is "seven billion, nine hundred ninety million, two hundred seventy-eight thousand, eight hundred ninety-two".