84465611656447 has 8 divisors (see below), whose sum is σ = 96936027724800. Its totient is φ = 72096170617464.

The previous prime is 84465611656411. The next prime is 84465611656453. The reversal of 84465611656447 is 74465611656448.

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

It is not a de Polignac number, because 84465611656447 - 2¹⁹ = 84465611132159 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 (84465611656487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25243755547 + ... + 25243758892.

It is an arithmetic number, because the mean of its divisors is an integer number (12117003465600).

Almost surely, 2^{84465611656447} is an apocalyptic number.

84465611656447 is a deficient number, since it is larger than the sum of its proper divisors (12470416068353).

84465611656447 is a wasteful number, since it uses less digits than its factorization.

84465611656447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50487514685.

The product of its digits is 464486400, while the sum is 67.

Subtracting from 84465611656447 its reverse (74465611656448), we obtain a palindrome (9999999999999).

The spelling of 84465611656447 in words is "eighty-four trillion, four hundred sixty-five billion, six hundred eleven million, six hundred fifty-six thousand, four hundred forty-seven".