84083177138047 has 4 divisors (see below), whose sum is σ = 84083652390760. Its totient is φ = 84082701885336.

The previous prime is 84083177138033. The next prime is 84083177138083. The reversal of 84083177138047 is 74083177138048.

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 84083177138047 - 2¹⁹ = 84083176613759 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 (84083177138647) 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, 237360873 + ... + 237714850.

It is an arithmetic number, because the mean of its divisors is an integer number (21020913097690).

Almost surely, 2^{84083177138047} is an apocalyptic number.

84083177138047 is a deficient number, since it is larger than the sum of its proper divisors (475252713).

84083177138047 is a wasteful number, since it uses less digits than its factorization.

84083177138047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475252712.

The product of its (nonzero) digits is 25288704, while the sum is 61.

Subtracting from 84083177138047 its reverse (74083177138048), we obtain a palindrome (9999999999999).

The spelling of 84083177138047 in words is "eighty-four trillion, eighty-three billion, one hundred seventy-seven million, one hundred thirty-eight thousand, forty-seven".