2647490281 has 2 divisors, whose sum is σ = 2647490282. Its totient is φ = 2647490280.

The previous prime is 2647490239. The next prime is 2647490299. The reversal of 2647490281 is 1820947462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2579014656 + 68475625 = 50784^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2647490281 - 2²¹ = 2645393129 is a prime.

It is a super-2 number, since 2×2647490281² = 14018409575978917922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2647496281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323745140 + 1323745141.

It is an arithmetic number, because the mean of its divisors is an integer number (1323745141).

Almost surely, 2^2647490281 is an apocalyptic number.

It is an amenable number.

2647490281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647490281 is an equidigital number, since it uses as much as digits as its factorization.

2647490281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2647490281 is about 51453.7683848326. The cubic root of 2647490281 is about 1383.3905080286.

The spelling of 2647490281 in words is "two billion, six hundred forty-seven million, four hundred ninety thousand, two hundred eighty-one".