3445640465444 has 12 divisors (see below), whose sum is σ = 6031542553344. Its totient is φ = 1722342593064.

The previous prime is 3445640465429. The next prime is 3445640465489. The reversal of 3445640465444 is 4445640465443.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119393684 + ... + 119422539.

It is an arithmetic number, because the mean of its divisors is an integer number (502628546112).

Almost surely, 2^{3445640465444} is an apocalyptic number.

It is an amenable number.

3445640465444 is a deficient number, since it is larger than the sum of its proper divisors (2585902087900).

3445640465444 is a wasteful number, since it uses less digits than its factorization.

3445640465444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238819834 (or 238819832 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 53.

Subtracting 3445640465444 from its reverse (4445640465443), we obtain a palindrome (999999999999).

The spelling of 3445640465444 in words is "three trillion, four hundred forty-five billion, six hundred forty million, four hundred sixty-five thousand, four hundred forty-four".