47857884167 has 4 divisors (see below), whose sum is σ = 47894114016. Its totient is φ = 47821654320.

The previous prime is 47857884131. The next prime is 47857884233. The reversal of 47857884167 is 76148875874.

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 47857884167 - 2¹⁸ = 47857622023 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 (47857884667) 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, 18112943 + ... + 18115584.

It is an arithmetic number, because the mean of its divisors is an integer number (11973528504).

Almost surely, 2^47857884167 is an apocalyptic number.

47857884167 is a deficient number, since it is larger than the sum of its proper divisors (36229849).

47857884167 is a wasteful number, since it uses less digits than its factorization.

47857884167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36229848.

The product of its digits is 84295680, while the sum is 65.

The spelling of 47857884167 in words is "forty-seven billion, eight hundred fifty-seven million, eight hundred eighty-four thousand, one hundred sixty-seven".