47480997281 has 2 divisors, whose sum is σ = 47480997282. Its totient is φ = 47480997280.

The previous prime is 47480997271. The next prime is 47480997293. The reversal of 47480997281 is 18279908474.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23764997281 + 23716000000 = 154159^2 + 154000^2 .

It is a cyclic number.

It is not a de Polignac number, because 47480997281 - 2⁶ = 47480997217 is a prime.

It is a super-2 number, since 2×47480997281² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47480997281.

It is not a weakly prime, because it can be changed into another prime (47480997251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23740498640 + 23740498641.

It is an arithmetic number, because the mean of its divisors is an integer number (23740498641).

Almost surely, 2^47480997281 is an apocalyptic number.

It is an amenable number.

47480997281 is a deficient number, since it is larger than the sum of its proper divisors (1).

47480997281 is an equidigital number, since it uses as much as digits as its factorization.

47480997281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 47480997281 in words is "forty-seven billion, four hundred eighty million, nine hundred ninety-seven thousand, two hundred eighty-one".