47881421867 has 4 divisors (see below), whose sum is σ = 48168137136. Its totient is φ = 47594706600.

The previous prime is 47881421843. The next prime is 47881421869. The reversal of 47881421867 is 76812418874.

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 47881421867 - 2²⁶ = 47814313003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47881421869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143357384 + ... + 143357717.

It is an arithmetic number, because the mean of its divisors is an integer number (12042034284).

Almost surely, 2^47881421867 is an apocalyptic number.

47881421867 is a deficient number, since it is larger than the sum of its proper divisors (286715269).

47881421867 is a wasteful number, since it uses less digits than its factorization.

47881421867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286715268.

The product of its digits is 4816896, while the sum is 56.

The spelling of 47881421867 in words is "forty-seven billion, eight hundred eighty-one million, four hundred twenty-one thousand, eight hundred sixty-seven".