6819651332 has 12 divisors (see below), whose sum is σ = 12852419916. Its totient is φ = 3147531360.

The previous prime is 6819651329. The next prime is 6819651341. The reversal of 6819651332 is 2331569186.

It can be written as a sum of positive squares in 2 ways, for example, as 1434439876 + 5385211456 = 37874^2 + 73384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65573519 + ... + 65573622.

It is an arithmetic number, because the mean of its divisors is an integer number (1071034993).

Almost surely, 2^6819651332 is an apocalyptic number.

It is an amenable number.

6819651332 is a deficient number, since it is larger than the sum of its proper divisors (6032768584).

6819651332 is a wasteful number, since it uses less digits than its factorization.

6819651332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131147158 (or 131147156 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 6819651332 is about 82581.1802531303. The cubic root of 6819651332 is about 1896.3597272577.

The spelling of 6819651332 in words is "six billion, eight hundred nineteen million, six hundred fifty-one thousand, three hundred thirty-two".