47816573537 has 2 divisors, whose sum is σ = 47816573538. Its totient is φ = 47816573536.

The previous prime is 47816573509. The next prime is 47816573543. The reversal of 47816573537 is 73537561874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47301465121 + 515108416 = 217489^2 + 22696^2 .

It is a cyclic number.

It is not a de Polignac number, because 47816573537 - 2¹² = 47816569441 is a prime.

It is not a weakly prime, because it can be changed into another prime (47816573507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23908286768 + 23908286769.

It is an arithmetic number, because the mean of its divisors is an integer number (23908286769).

Almost surely, 2^47816573537 is an apocalyptic number.

It is an amenable number.

47816573537 is a deficient number, since it is larger than the sum of its proper divisors (1).

47816573537 is an equidigital number, since it uses as much as digits as its factorization.

47816573537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14817600, while the sum is 56.

The spelling of 47816573537 in words is "forty-seven billion, eight hundred sixteen million, five hundred seventy-three thousand, five hundred thirty-seven".