47287573849 has 2 divisors, whose sum is σ = 47287573850. Its totient is φ = 47287573848.

The previous prime is 47287573831. The next prime is 47287573859. The reversal of 47287573849 is 94837578274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33235842249 + 14051731600 = 182307^2 + 118540^2 .

It is a cyclic number.

It is not a de Polignac number, because 47287573849 - 2¹¹ = 47287571801 is a prime.

It is a super-2 number, since 2×47287573849² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47287573829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23643786924 + 23643786925.

It is an arithmetic number, because the mean of its divisors is an integer number (23643786925).

Almost surely, 2^47287573849 is an apocalyptic number.

It is an amenable number.

47287573849 is a deficient number, since it is larger than the sum of its proper divisors (1).

47287573849 is an equidigital number, since it uses as much as digits as its factorization.

47287573849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94832640, while the sum is 64.

The spelling of 47287573849 in words is "forty-seven billion, two hundred eighty-seven million, five hundred seventy-three thousand, eight hundred forty-nine".