6443651152 has 20 divisors (see below), whose sum is σ = 12487881280. Its totient is φ = 3220972128.

The previous prime is 6443651147. The next prime is 6443651153. The reversal of 6443651152 is 2511563446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443651153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11323 + ... + 114085.

It is an arithmetic number, because the mean of its divisors is an integer number (624394064).

Almost surely, 2^6443651152 is an apocalyptic number.

It is an amenable number.

6443651152 is a deficient number, since it is larger than the sum of its proper divisors (6044230128).

6443651152 is a wasteful number, since it uses less digits than its factorization.

6443651152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106690 (or 106684 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The square root of 6443651152 is about 80272.3560885066. The cubic root of 6443651152 is about 1860.8470293264.

The spelling of 6443651152 in words is "six billion, four hundred forty-three million, six hundred fifty-one thousand, one hundred fifty-two".