1281613070853 has 12 divisors (see below), whose sum is σ = 1851596512480. Its totient is φ = 854234422056.

The previous prime is 1281613070849. The next prime is 1281613070869. The reversal of 1281613070853 is 3580703161821.

It is a happy number.

1281613070853 is a `hidden beast` number, since 1 + 28 + 1 + 613 + 0 + 7 + 0 + 8 + 5 + 3 = 666.

It is not a de Polignac number, because 1281613070853 - 2² = 1281613070849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1281613070799 and 1281613070808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1281613070653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14477743 + ... + 14565996.

Almost surely, 2^{1281613070853} is an apocalyptic number.

It is an amenable number.

1281613070853 is a deficient number, since it is larger than the sum of its proper divisors (569983441627).

1281613070853 is a wasteful number, since it uses less digits than its factorization.

1281613070853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29048648 (or 29048645 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 1281613070853 in words is "one trillion, two hundred eighty-one billion, six hundred thirteen million, seventy thousand, eight hundred fifty-three".