47539965191 has 2 divisors, whose sum is σ = 47539965192. Its totient is φ = 47539965190.

The previous prime is 47539965157. The next prime is 47539965211. The reversal of 47539965191 is 19156993574.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 47539965191 - 2³⁰ = 46466223367 is a prime.

It is a super-2 number, since 2×47539965191² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47539965191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47539965491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23769982595 + 23769982596.

It is an arithmetic number, because the mean of its divisors is an integer number (23769982596).

Almost surely, 2^47539965191 is an apocalyptic number.

47539965191 is a deficient number, since it is larger than the sum of its proper divisors (1).

47539965191 is an equidigital number, since it uses as much as digits as its factorization.

47539965191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9185400, while the sum is 59.

The spelling of 47539965191 in words is "forty-seven billion, five hundred thirty-nine million, nine hundred sixty-five thousand, one hundred ninety-one".