3445640465443 has 24 divisors (see below), whose sum is σ = 3812067971600. Its totient is φ = 3111977594880.

The previous prime is 3445640465429. The next prime is 3445640465489.

It is a happy number.

3445640465443 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3445640465443 - 2²⁹ = 3445103594531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3445640465243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53002663 + ... + 53067631.

Almost surely, 2^{3445640465443} is an apocalyptic number.

3445640465443 is a deficient number, since it is larger than the sum of its proper divisors (366427506157).

3445640465443 is a wasteful number, since it uses less digits than its factorization.

3445640465443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67843 (or 67832 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 52.

The spelling of 3445640465443 in words is "three trillion, four hundred forty-five billion, six hundred forty million, four hundred sixty-five thousand, four hundred forty-three".