47736644073 has 4 divisors (see below), whose sum is σ = 63648858768. Its totient is φ = 31824429380.

The previous prime is 47736644057. The next prime is 47736644093. The reversal of 47736644073 is 37044663774.

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 47736644073 - 2⁴ = 47736644057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47736644093) 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, 7956107343 + ... + 7956107348.

It is an arithmetic number, because the mean of its divisors is an integer number (15912214692).

Almost surely, 2^47736644073 is an apocalyptic number.

It is an amenable number.

47736644073 is a deficient number, since it is larger than the sum of its proper divisors (15912214695).

47736644073 is a wasteful number, since it uses less digits than its factorization.

47736644073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15912214694.

The product of its (nonzero) digits is 7112448, while the sum is 51.

The spelling of 47736644073 in words is "forty-seven billion, seven hundred thirty-six million, six hundred forty-four thousand, seventy-three".