7281372863 has 2 divisors, whose sum is σ = 7281372864. Its totient is φ = 7281372862.

The previous prime is 7281372823. The next prime is 7281372877. The reversal of 7281372863 is 3682731827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7281372863 - 2²⁴ = 7264595647 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7281372823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3640686431 + 3640686432.

It is an arithmetic number, because the mean of its divisors is an integer number (3640686432).

Almost surely, 2^7281372863 is an apocalyptic number.

7281372863 is a deficient number, since it is larger than the sum of its proper divisors (1).

7281372863 is an equidigital number, since it uses as much as digits as its factorization.

7281372863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 677376, while the sum is 47.

The square root of 7281372863 is about 85330.9607528241. The cubic root of 7281372863 is about 1938.2260383136.

The spelling of 7281372863 in words is "seven billion, two hundred eighty-one million, three hundred seventy-two thousand, eight hundred sixty-three".