6443536470 has 64 divisors (see below), whose sum is σ = 17690849280. Its totient is φ = 1471379328.

The previous prime is 6443536441. The next prime is 6443536483. The reversal of 6443536470 is 746353446.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210139 + ... + 238841.

It is an arithmetic number, because the mean of its divisors is an integer number (276419520).

Almost surely, 2^6443536470 is an apocalyptic number.

6443536470 is an abundant number, since it is smaller than the sum of its proper divisors (11247312810).

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

6443536470 is a wasteful number, since it uses less digits than its factorization.

6443536470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29789.

The product of its (nonzero) digits is 725760, while the sum is 42.

The square root of 6443536470 is about 80271.6417547318. The cubic root of 6443536470 is about 1860.8359896782.

The spelling of 6443536470 in words is "six billion, four hundred forty-three million, five hundred thirty-six thousand, four hundred seventy".