4431332331345 has 64 divisors (see below), whose sum is σ = 7301178408960. Its totient is φ = 2293377235200.

The previous prime is 4431332331313. The next prime is 4431332331373. The reversal of 4431332331345 is 5431332331344.

It is a happy number.

It is not a de Polignac number, because 4431332331345 - 2⁵ = 4431332331313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 354188640 + ... + 354201150.

It is an arithmetic number, because the mean of its divisors is an integer number (114080912640).

Almost surely, 2^{4431332331345} is an apocalyptic number.

It is an amenable number.

4431332331345 is a deficient number, since it is larger than the sum of its proper divisors (2869846077615).

4431332331345 is a wasteful number, since it uses less digits than its factorization.

4431332331345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14206.

The product of its digits is 466560, while the sum is 39.

Adding to 4431332331345 its reverse (5431332331344), we get a palindrome (9862664662689).

Subtracting 4431332331345 from its reverse (5431332331344), we obtain a palindrome (999999999999).

The spelling of 4431332331345 in words is "four trillion, four hundred thirty-one billion, three hundred thirty-two million, three hundred thirty-one thousand, three hundred forty-five".