6441431532 has 48 divisors (see below), whose sum is σ = 15507555840. Its totient is φ = 2079949248.

The previous prime is 6441431531. The next prime is 6441431533. The reversal of 6441431532 is 2351341446.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6441431531) and next prime (6441431533).

It is a junction number, because it is equal to n+sod(n) for n = 6441431493 and 6441431502.

It is not an unprimeable number, because it can be changed into a prime (6441431531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13858 + ... + 114345.

It is an arithmetic number, because the mean of its divisors is an integer number (323074080).

Almost surely, 2^6441431532 is an apocalyptic number.

It is an amenable number.

6441431532 is an abundant number, since it is smaller than the sum of its proper divisors (9066124308).

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

6441431532 is a wasteful number, since it uses less digits than its factorization.

6441431532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128342 (or 128340 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 6441431532 is about 80258.5293411236. The cubic root of 6441431532 is about 1860.6333384890.

Adding to 6441431532 its reverse (2351341446), we get a palindrome (8792772978).

The spelling of 6441431532 in words is "six billion, four hundred forty-one million, four hundred thirty-one thousand, five hundred thirty-two".