281630632716730 has 64 divisors (see below), whose sum is σ = 553669166562048. Its totient is φ = 102290961922560.

The previous prime is 281630632716647. The next prime is 281630632716731. The reversal of 281630632716730 is 37617236036182.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is not an unprimeable number, because it can be changed into a prime (281630632716731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2659022254 + ... + 2659128166.

It is an arithmetic number, because the mean of its divisors is an integer number (8651080727532).

Almost surely, 2^{281630632716730} is an apocalyptic number.

281630632716730 is a deficient number, since it is larger than the sum of its proper divisors (272038533845318).

281630632716730 is a wasteful number, since it uses less digits than its factorization.

281630632716730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134071.

The product of its (nonzero) digits is 9144576, while the sum is 55.

The spelling of 281630632716730 in words is "two hundred eighty-one trillion, six hundred thirty billion, six hundred thirty-two million, seven hundred sixteen thousand, seven hundred thirty".