7643477244 has 96 divisors (see below), whose sum is σ = 20338528000. Its totient is φ = 2227912128.

The previous prime is 7643477227. The next prime is 7643477291. The reversal of 7643477244 is 4427743467.

It is a junction number, because it is equal to n+sod(n) for n = 7643477193 and 7643477202.

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 493287 + ... + 508545.

Almost surely, 2^7643477244 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 7643477244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10169264000).

7643477244 is an abundant number, since it is smaller than the sum of its proper divisors (12695050756).

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

7643477244 is a wasteful number, since it uses less digits than its factorization.

7643477244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15324 (or 15296 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 48.

The square root of 7643477244 is about 87426.9823567072. The cubic root of 7643477244 is about 1969.8371586734.

The spelling of 7643477244 in words is "seven billion, six hundred forty-three million, four hundred seventy-seven thousand, two hundred forty-four".