7639388882 has 4 divisors (see below), whose sum is σ = 11459083326. Its totient is φ = 3819694440.

The previous prime is 7639388873. The next prime is 7639388893. The reversal of 7639388882 is 2888839367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2888839367 = 773 ⋅3737179.

It can be written as a sum of positive squares in only one way, i.e., 6982440721 + 656948161 = 83561^2 + 25631^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1909847219 + ... + 1909847222.

Almost surely, 2^7639388882 is an apocalyptic number.

7639388882 is a deficient number, since it is larger than the sum of its proper divisors (3819694444).

7639388882 is a wasteful number, since it uses less digits than its factorization.

7639388882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819694443.

The product of its digits is 27869184, while the sum is 62.

The square root of 7639388882 is about 87403.5976490671. The cubic root of 7639388882 is about 1969.4858855800.

The spelling of 7639388882 in words is "seven billion, six hundred thirty-nine million, three hundred eighty-eight thousand, eight hundred eighty-two".