47643567461 has 4 divisors (see below), whose sum is σ = 54449791392. Its totient is φ = 40837343532.

The previous prime is 47643567451. The next prime is 47643567469. The reversal of 47643567461 is 16476534674.

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 47643567461 - 2⁶ = 47643567397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47643567469) 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, 3403111955 + ... + 3403111968.

It is an arithmetic number, because the mean of its divisors is an integer number (13612447848).

Almost surely, 2^47643567461 is an apocalyptic number.

It is an amenable number.

47643567461 is a deficient number, since it is larger than the sum of its proper divisors (6806223931).

47643567461 is an equidigital number, since it uses as much as digits as its factorization.

47643567461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6806223930.

The product of its digits is 10160640, while the sum is 53.

The spelling of 47643567461 in words is "forty-seven billion, six hundred forty-three million, five hundred sixty-seven thousand, four hundred sixty-one".