281640988104 has 64 divisors (see below), whose sum is σ = 804991088640. Its totient is φ = 80438598720.

The previous prime is 281640988063. The next prime is 281640988127. The reversal of 281640988104 is 401889046182.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134907 + ... + 762549.

It is an arithmetic number, because the mean of its divisors is an integer number (12577985760).

Almost surely, 2^281640988104 is an apocalyptic number.

281640988104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

281640988104 is an abundant number, since it is smaller than the sum of its proper divisors (523350100536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

281640988104 is a wasteful number, since it uses less digits than its factorization.

281640988104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630330 (or 630326 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 281640988104 in words is "two hundred eighty-one billion, six hundred forty million, nine hundred eighty-eight thousand, one hundred four".