1275353664456 has 16 divisors (see below), whose sum is σ = 3188384161200. Its totient is φ = 425117888144.

The previous prime is 1275353664449. The next prime is 1275353664461. The reversal of 1275353664456 is 6544663535721.

It is a junction number, because it is equal to n+sod(n) for n = 1275353664396 and 1275353664405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26569867986 + ... + 26569868033.

It is an arithmetic number, because the mean of its divisors is an integer number (199274010075).

Almost surely, 2^{1275353664456} is an apocalyptic number.

It is an amenable number.

1275353664456 is an abundant number, since it is smaller than the sum of its proper divisors (1913030496744).

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

1275353664456 is a wasteful number, since it uses less digits than its factorization.

1275353664456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53139736028 (or 53139736024 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 57.

The spelling of 1275353664456 in words is "one trillion, two hundred seventy-five billion, three hundred fifty-three million, six hundred sixty-four thousand, four hundred fifty-six".