1275684668364 has 48 divisors (see below), whose sum is σ = 3050178165216. Its totient is φ = 414723379200.

The previous prime is 1275684668299. The next prime is 1275684668399. The reversal of 1275684668364 is 4638664865721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1275684668295 and 1275684668304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1120144 + ... + 1950920.

It is an arithmetic number, because the mean of its divisors is an integer number (63545378442).

Almost surely, 2^{1275684668364} is an apocalyptic number.

It is an amenable number.

1275684668364 is an abundant number, since it is smaller than the sum of its proper divisors (1774493496852).

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

1275684668364 is a wasteful number, since it uses less digits than its factorization.

1275684668364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833946 (or 833944 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 66.

The spelling of 1275684668364 in words is "one trillion, two hundred seventy-five billion, six hundred eighty-four million, six hundred sixty-eight thousand, three hundred sixty-four".