6445113433 has 4 divisors (see below), whose sum is σ = 7031032848. Its totient is φ = 5859194020.

The previous prime is 6445113421. The next prime is 6445113461. The reversal of 6445113433 is 3343115446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6445113433 - 2⁵ = 6445113401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6445113473) 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, 292959691 + ... + 292959712.

It is an arithmetic number, because the mean of its divisors is an integer number (1757758212).

Almost surely, 2^6445113433 is an apocalyptic number.

It is an amenable number.

6445113433 is a deficient number, since it is larger than the sum of its proper divisors (585919415).

6445113433 is a wasteful number, since it uses less digits than its factorization.

6445113433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585919414.

The product of its digits is 51840, while the sum is 34.

The square root of 6445113433 is about 80281.4638194895. The cubic root of 6445113433 is about 1860.9877815895.

Adding to 6445113433 its reverse (3343115446), we get a palindrome (9788228879).

The spelling of 6445113433 in words is "six billion, four hundred forty-five million, one hundred thirteen thousand, four hundred thirty-three".