1375727304665 has 16 divisors (see below), whose sum is σ = 1937703942912. Its totient is φ = 917859760704.

The previous prime is 1375727304599. The next prime is 1375727304701. The reversal of 1375727304665 is 5664037275731.

It is a cyclic number.

It is not a de Polignac number, because 1375727304665 - 2⁸ = 1375727304409 is a prime.

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 1375727304665.

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, 531167549 + ... + 531170138.

It is an arithmetic number, because the mean of its divisors is an integer number (121106496432).

Almost surely, 2^{1375727304665} is an apocalyptic number.

It is an amenable number.

1375727304665 is a deficient number, since it is larger than the sum of its proper divisors (561976638247).

1375727304665 is a wasteful number, since it uses less digits than its factorization.

1375727304665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062337736.

The product of its (nonzero) digits is 22226400, while the sum is 56.

The spelling of 1375727304665 in words is "one trillion, three hundred seventy-five billion, seven hundred twenty-seven million, three hundred four thousand, six hundred sixty-five".