47873871847 has 4 divisors (see below), whose sum is σ = 49955344560. Its totient is φ = 45792399136.

The previous prime is 47873871821. The next prime is 47873871869. The reversal of 47873871847 is 74817837874.

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 47873871847 - 2²⁷ = 47739654119 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 (47873871817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1040736322 + ... + 1040736367.

It is an arithmetic number, because the mean of its divisors is an integer number (12488836140).

Almost surely, 2^47873871847 is an apocalyptic number.

47873871847 is a deficient number, since it is larger than the sum of its proper divisors (2081472713).

47873871847 is a wasteful number, since it uses less digits than its factorization.

47873871847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081472712.

The product of its digits is 59006976, while the sum is 64.

The spelling of 47873871847 in words is "forty-seven billion, eight hundred seventy-three million, eight hundred seventy-one thousand, eight hundred forty-seven".