7638422976 has 84 divisors (see below), whose sum is σ = 21956767872. Its totient is φ = 2538860544.

The previous prime is 7638422947. The next prime is 7638423007. The reversal of 7638422976 is 6792248367.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184545 + ... + 222111.

Almost surely, 2^7638422976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7638422976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10978383936).

7638422976 is an abundant number, since it is smaller than the sum of its proper divisors (14318344896).

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

7638422976 is a wasteful number, since it uses less digits than its factorization.

7638422976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37938 (or 37925 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The square root of 7638422976 is about 87398.0719238131. The cubic root of 7638422976 is about 1969.4028763915.

The spelling of 7638422976 in words is "seven billion, six hundred thirty-eight million, four hundred twenty-two thousand, nine hundred seventy-six".