47146221773 has 4 divisors (see below), whose sum is σ = 53881396320. Its totient is φ = 40411047228.

The previous prime is 47146221751. The next prime is 47146221797. The reversal of 47146221773 is 37712264174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47146221773 - 2¹⁰ = 47146220749 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 (47146221173) 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, 3367587263 + ... + 3367587276.

It is an arithmetic number, because the mean of its divisors is an integer number (13470349080).

Almost surely, 2^47146221773 is an apocalyptic number.

It is an amenable number.

47146221773 is a deficient number, since it is larger than the sum of its proper divisors (6735174547).

47146221773 is an equidigital number, since it uses as much as digits as its factorization.

47146221773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6735174546.

The product of its digits is 395136, while the sum is 44.

The spelling of 47146221773 in words is "forty-seven billion, one hundred forty-six million, two hundred twenty-one thousand, seven hundred seventy-three".