1281227248908 has 72 divisors (see below), whose sum is σ = 3388947529968. Its totient is φ = 407692891008.

The previous prime is 1281227248879. The next prime is 1281227248909. The reversal of 1281227248908 is 8098427221821.

It is a happy number.

1281227248908 is a `hidden beast` number, since 1 + 281 + 2 + 272 + 4 + 8 + 90 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1281227248909) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9003766 + ... + 9144957.

It is an arithmetic number, because the mean of its divisors is an integer number (47068715694).

Almost surely, 2^{1281227248908} is an apocalyptic number.

1281227248908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1281227248908 is an abundant number, since it is smaller than the sum of its proper divisors (2107720281060).

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

1281227248908 is a wasteful number, since it uses less digits than its factorization.

1281227248908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148823 (or 18148818 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 54.

The spelling of 1281227248908 in words is "one trillion, two hundred eighty-one billion, two hundred twenty-seven million, two hundred forty-eight thousand, nine hundred eight".