1281516873480 has 96 divisors (see below), whose sum is σ = 4165097751360. Its totient is φ = 341724055680.

The previous prime is 1281516873463. The next prime is 1281516873587. The reversal of 1281516873480 is 843786151821.

1281516873480 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 516 + 87 + 3 + 48 + 0 = 666.

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 23 ways as a sum of consecutive naturals, for example, 11424949 + ... + 11536571.

It is an arithmetic number, because the mean of its divisors is an integer number (43386434910).

Almost surely, 2^{1281516873480} is an apocalyptic number.

1281516873480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1281516873480 is an abundant number, since it is smaller than the sum of its proper divisors (2883580877880).

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

1281516873480 is a wasteful number, since it uses less digits than its factorization.

1281516873480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143531 (or 143524 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 54.

The spelling of 1281516873480 in words is "one trillion, two hundred eighty-one billion, five hundred sixteen million, eight hundred seventy-three thousand, four hundred eighty".