47646143999 has 4 divisors (see below), whose sum is σ = 47871955320. Its totient is φ = 47420332680.

The previous prime is 47646143939. The next prime is 47646144031. The reversal of 47646143999 is 99934164674.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47646143999 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 (47646143939) 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, 112905344 + ... + 112905765.

It is an arithmetic number, because the mean of its divisors is an integer number (11967988830).

Almost surely, 2^47646143999 is an apocalyptic number.

47646143999 is a deficient number, since it is larger than the sum of its proper divisors (225811321).

47646143999 is a wasteful number, since it uses less digits than its factorization.

47646143999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225811320.

The product of its digits is 35271936, while the sum is 62.

The spelling of 47646143999 in words is "forty-seven billion, six hundred forty-six million, one hundred forty-three thousand, nine hundred ninety-nine".