3969004040465 has 8 divisors (see below), whose sum is σ = 4783246072488. Its totient is φ = 3161575749760.

The previous prime is 3969004040447. The next prime is 3969004040473. The reversal of 3969004040465 is 5640404009693.

It can be written as a sum of positive squares in 4 ways, for example, as 589756417936 + 3379247622529 = 767956^2 + 1838273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3969004040465 - 2¹⁴ = 3969004024081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1703434046 + ... + 1703436375.

It is an arithmetic number, because the mean of its divisors is an integer number (597905759061).

Almost surely, 2^{3969004040465} is an apocalyptic number.

It is an amenable number.

3969004040465 is a deficient number, since it is larger than the sum of its proper divisors (814242032023).

3969004040465 is a wasteful number, since it uses less digits than its factorization.

3969004040465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406870659.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 3969004040465 in words is "three trillion, nine hundred sixty-nine billion, four million, forty thousand, four hundred sixty-five".