281230633895040 has 128 divisors (see below), whose sum is σ = 996025161772800. Its totient is φ = 74994835700736.

The previous prime is 281230633894993. The next prime is 281230633895117. The reversal of 281230633895040 is 40598336032182.

281230633895040 is a `hidden beast` number, since 2 + 8 + 1 + 23 + 0 + 6 + 33 + 89 + 504 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8137443192 + ... + 8137477751.

It is an arithmetic number, because the mean of its divisors is an integer number (7781446576350).

Almost surely, 2^{281230633895040} is an apocalyptic number.

281230633895040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281230633895040 is an abundant number, since it is smaller than the sum of its proper divisors (714794527877760).

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

281230633895040 is a wasteful number, since it uses less digits than its factorization.

281230633895040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16274920971 (or 16274920953 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 281230633895040 in words is "two hundred eighty-one trillion, two hundred thirty billion, six hundred thirty-three million, eight hundred ninety-five thousand, forty".