281630632716731 has 2 divisors, whose sum is σ = 281630632716732. Its totient is φ = 281630632716730.

The previous prime is 281630632716647. The next prime is 281630632716793. The reversal of 281630632716731 is 137617236036182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-281630632716731 is a prime.

It is a super-2 number, since 2×281630632716731² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (281630632712731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140815316358365 + 140815316358366.

It is an arithmetic number, because the mean of its divisors is an integer number (140815316358366).

Almost surely, 2^{281630632716731} is an apocalyptic number.

281630632716731 is a deficient number, since it is larger than the sum of its proper divisors (1).

281630632716731 is an equidigital number, since it uses as much as digits as its factorization.

281630632716731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 281630632716731 in words is "two hundred eighty-one trillion, six hundred thirty billion, six hundred thirty-two million, seven hundred sixteen thousand, seven hundred thirty-one".