1280142478841 has 16 divisors (see below), whose sum is σ = 1354695326400. Its totient is φ = 1206317448000.

The previous prime is 1280142478777. The next prime is 1280142478873. The reversal of 1280142478841 is 1488742410821.

It is not a de Polignac number, because 1280142478841 - 2⁶ = 1280142478777 is a prime.

It is a super-2 number, since 2×1280142478841² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1280142478841.

It is not an unprimeable number, because it can be changed into a prime (1280142178841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4432931 + ... + 4712871.

It is an arithmetic number, because the mean of its divisors is an integer number (84668457900).

Almost surely, 2^{1280142478841} is an apocalyptic number.

It is an amenable number.

1280142478841 is a deficient number, since it is larger than the sum of its proper divisors (74552847559).

1280142478841 is a wasteful number, since it uses less digits than its factorization.

1280142478841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281240.

The product of its (nonzero) digits is 917504, while the sum is 50.

The spelling of 1280142478841 in words is "one trillion, two hundred eighty billion, one hundred forty-two million, four hundred seventy-eight thousand, eight hundred forty-one".