47146665441 has 4 divisors (see below), whose sum is σ = 62862220592. Its totient is φ = 31431110292.

The previous prime is 47146665421. The next prime is 47146665443. The reversal of 47146665441 is 14456664174.

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 not a de Polignac number, because 47146665441 - 2²⁵ = 47113111009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47146665443) 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, 7857777571 + ... + 7857777576.

It is an arithmetic number, because the mean of its divisors is an integer number (15715555148).

Almost surely, 2^47146665441 is an apocalyptic number.

It is an amenable number.

47146665441 is a deficient number, since it is larger than the sum of its proper divisors (15715555151).

47146665441 is a wasteful number, since it uses less digits than its factorization.

47146665441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715555150.

The product of its digits is 1935360, while the sum is 48.

The spelling of 47146665441 in words is "forty-seven billion, one hundred forty-six million, six hundred sixty-five thousand, four hundred forty-one".