47501543791 has 4 divisors (see below), whose sum is σ = 51155508712. Its totient is φ = 43847578872.

The previous prime is 47501543783. The next prime is 47501543797. The reversal of 47501543791 is 19734510574.

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 47501543791 - 2³ = 47501543783 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 (47501543797) 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, 1826982441 + ... + 1826982466.

It is an arithmetic number, because the mean of its divisors is an integer number (12788877178).

Almost surely, 2^47501543791 is an apocalyptic number.

47501543791 is a deficient number, since it is larger than the sum of its proper divisors (3653964921).

47501543791 is a wasteful number, since it uses less digits than its factorization.

47501543791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653964920.

The product of its (nonzero) digits is 529200, while the sum is 46.

The spelling of 47501543791 in words is "forty-seven billion, five hundred one million, five hundred forty-three thousand, seven hundred ninety-one".