5317912791 has 16 divisors (see below), whose sum is σ = 7879513600. Its totient is φ = 3544769304.

The previous prime is 5317912753. The next prime is 5317912799. The reversal of 5317912791 is 1972197135.

It is a happy number.

5317912791 is a `hidden beast` number, since 531 + 7 + 9 + 1 + 27 + 91 = 666.

It is not a de Polignac number, because 5317912791 - 2²¹ = 5315815639 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 (5317912799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352440 + ... + 367218.

It is an arithmetic number, because the mean of its divisors is an integer number (492469600).

Almost surely, 2^5317912791 is an apocalyptic number.

5317912791 is a deficient number, since it is larger than the sum of its proper divisors (2561600809).

5317912791 is a wasteful number, since it uses less digits than its factorization.

5317912791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28115 (or 28109 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 5317912791 is about 72924.0206722038. The cubic root of 5317912791 is about 1745.4754183916.

The spelling of 5317912791 in words is "five billion, three hundred seventeen million, nine hundred twelve thousand, seven hundred ninety-one".