47811788817 has 24 divisors (see below), whose sum is σ = 71410406400. Its totient is φ = 28408056768.

The previous prime is 47811788809. The next prime is 47811788891. The reversal of 47811788817 is 71888711874.

It is not a de Polignac number, because 47811788817 - 2³ = 47811788809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47811788807) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1611217 + ... + 1640622.

It is an arithmetic number, because the mean of its divisors is an integer number (2975433600).

Almost surely, 2^47811788817 is an apocalyptic number.

It is an amenable number.

47811788817 is a deficient number, since it is larger than the sum of its proper divisors (23598617583).

47811788817 is a wasteful number, since it uses less digits than its factorization.

47811788817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251897 (or 3251884 counting only the distinct ones).

The product of its digits is 5619712, while the sum is 60.

The spelling of 47811788817 in words is "forty-seven billion, eight hundred eleven million, seven hundred eighty-eight thousand, eight hundred seventeen".