6432748544 has 22 divisors (see below), whose sum is σ = 12859217154. Its totient is φ = 3216373760.

The previous prime is 6432748523. The next prime is 6432748549. The reversal of 6432748544 is 4458472346.

It can be written as a sum of positive squares in only one way, i.e., 3504640000 + 2928108544 = 59200^2 + 54112^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432748549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3139967 + ... + 3142014.

Almost surely, 2^6432748544 is an apocalyptic number.

6432748544 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6432748544 is a deficient number, since it is larger than the sum of its proper divisors (6426468610).

6432748544 is an equidigital number, since it uses as much as digits as its factorization.

6432748544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6282001 (or 6281983 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 47.

The square root of 6432748544 is about 80204.4172349628. The cubic root of 6432748544 is about 1859.7969239112.

The spelling of 6432748544 in words is "six billion, four hundred thirty-two million, seven hundred forty-eight thousand, five hundred forty-four".