1281481193160 has 192 divisors, whose sum is σ = 4760220441600. Its totient is φ = 292883332608.

The previous prime is 1281481193129. The next prime is 1281481193173. The reversal of 1281481193160 is 613911841821.

1281481193160 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 481 + 1 + 9 + 3 + 160 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45237481 + ... + 45265799.

It is an arithmetic number, because the mean of its divisors is an integer number (24792814800).

Almost surely, 2^{1281481193160} is an apocalyptic number.

1281481193160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1281481193160 is an abundant number, since it is smaller than the sum of its proper divisors (3478739248440).

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

1281481193160 is a wasteful number, since it uses less digits than its factorization.

1281481193160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46300 (or 46293 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The spelling of 1281481193160 in words is "one trillion, two hundred eighty-one billion, four hundred eighty-one million, one hundred ninety-three thousand, one hundred sixty".