84731944847 has 12 divisors (see below), whose sum is σ = 94057256328. Its totient is φ = 76266366000.

The previous prime is 84731944819. The next prime is 84731944859. The reversal of 84731944847 is 74844913748.

It is not a de Polignac number, because 84731944847 - 2¹⁶ = 84731879311 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 (84731944447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3454433 + ... + 3478874.

It is an arithmetic number, because the mean of its divisors is an integer number (7838104694).

Almost surely, 2^84731944847 is an apocalyptic number.

84731944847 is a deficient number, since it is larger than the sum of its proper divisors (9325311481).

84731944847 is a wasteful number, since it uses less digits than its factorization.

84731944847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933430 (or 6933419 counting only the distinct ones).

The product of its digits is 21676032, while the sum is 59.

The spelling of 84731944847 in words is "eighty-four billion, seven hundred thirty-one million, nine hundred forty-four thousand, eight hundred forty-seven".