8465464439 has 4 divisors (see below), whose sum is σ = 8469028224. Its totient is φ = 8461900656.

The previous prime is 8465464429. The next prime is 8465464451. The reversal of 8465464439 is 9344645648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8465464439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8465464429) 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, 1778327 + ... + 1783080.

It is an arithmetic number, because the mean of its divisors is an integer number (2117257056).

Almost surely, 2^8465464439 is an apocalyptic number.

8465464439 is a deficient number, since it is larger than the sum of its proper divisors (3563785).

8465464439 is a wasteful number, since it uses less digits than its factorization.

8465464439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563784.

The product of its digits is 9953280, while the sum is 53.

The square root of 8465464439 is about 92007.9585633765. The cubic root of 8465464439 is about 2038.0598334869.

The spelling of 8465464439 in words is "eight billion, four hundred sixty-five million, four hundred sixty-four thousand, four hundred thirty-nine".