84115228872547 has 4 divisors (see below), whose sum is σ = 84139917818976. Its totient is φ = 84090539926120.

The previous prime is 84115228872541. The next prime is 84115228872557. The reversal of 84115228872547 is 74527882251148.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 84115228872547 - 2¹¹ = 84115228870499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84115228872541) 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, 12344468104 + ... + 12344474917.

It is an arithmetic number, because the mean of its divisors is an integer number (21034979454744).

Almost surely, 2^{84115228872547} is an apocalyptic number.

84115228872547 is a deficient number, since it is larger than the sum of its proper divisors (24688946429).

84115228872547 is a wasteful number, since it uses less digits than its factorization.

84115228872547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24688946428.

The product of its digits is 80281600, while the sum is 64.

The spelling of 84115228872547 in words is "eighty-four trillion, one hundred fifteen billion, two hundred twenty-eight million, eight hundred seventy-two thousand, five hundred forty-seven".