5117851447 has 2 divisors, whose sum is σ = 5117851448. Its totient is φ = 5117851446.

The previous prime is 5117851429. The next prime is 5117851567. The reversal of 5117851447 is 7441587115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5117851447 - 2²⁷ = 4983633719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5117851747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2558925723 + 2558925724.

It is an arithmetic number, because the mean of its divisors is an integer number (2558925724).

Almost surely, 2^5117851447 is an apocalyptic number.

5117851447 is a deficient number, since it is larger than the sum of its proper divisors (1).

5117851447 is an equidigital number, since it uses as much as digits as its factorization.

5117851447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 156800, while the sum is 43.

The square root of 5117851447 is about 71539.1602340984. The cubic root of 5117851447 is about 1723.3066288610.

The spelling of 5117851447 in words is "five billion, one hundred seventeen million, eight hundred fifty-one thousand, four hundred forty-seven".