84125234470647 has 4 divisors (see below), whose sum is σ = 112166979294200. Its totient is φ = 56083489647096.

The previous prime is 84125234470631. The next prime is 84125234470681. The reversal of 84125234470647 is 74607443252148.

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

It is not a de Polignac number, because 84125234470647 - 2⁴ = 84125234470631 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 (84125234470247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14020872411772 + ... + 14020872411777.

It is an arithmetic number, because the mean of its divisors is an integer number (28041744823550).

Almost surely, 2^{84125234470647} is an apocalyptic number.

84125234470647 is a deficient number, since it is larger than the sum of its proper divisors (28041744823553).

84125234470647 is a wasteful number, since it uses less digits than its factorization.

84125234470647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28041744823552.

The product of its (nonzero) digits is 36126720, while the sum is 57.

The spelling of 84125234470647 in words is "eighty-four trillion, one hundred twenty-five billion, two hundred thirty-four million, four hundred seventy thousand, six hundred forty-seven".