84275959847 has 4 divisors (see below), whose sum is σ = 84288874320. Its totient is φ = 84263045376.

The previous prime is 84275959837. The next prime is 84275959861. The reversal of 84275959847 is 74895957248.

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 84275959847 - 2³² = 79980992551 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 (84275959837) 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, 6447443 + ... + 6460500.

It is an arithmetic number, because the mean of its divisors is an integer number (21072218580).

Almost surely, 2^84275959847 is an apocalyptic number.

84275959847 is a deficient number, since it is larger than the sum of its proper divisors (12914473).

84275959847 is a wasteful number, since it uses less digits than its factorization.

84275959847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12914472.

The product of its digits is 203212800, while the sum is 68.

The spelling of 84275959847 in words is "eighty-four billion, two hundred seventy-five million, nine hundred fifty-nine thousand, eight hundred forty-seven".