1006728273401 has 4 divisors (see below), whose sum is σ = 1006778406900. Its totient is φ = 1006678139904.

The previous prime is 1006728273389. The next prime is 1006728273409. The reversal of 1006728273401 is 1043728276001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 264160021225 + 742568252176 = 513965^2 + 861724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006728273401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1006728273409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25036616 + ... + 25076793.

It is an arithmetic number, because the mean of its divisors is an integer number (251694601725).

Almost surely, 2^{1006728273401} is an apocalyptic number.

It is an amenable number.

1006728273401 is a deficient number, since it is larger than the sum of its proper divisors (50133499).

1006728273401 is an equidigital number, since it uses as much as digits as its factorization.

1006728273401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50133498.

The product of its (nonzero) digits is 112896, while the sum is 41.

The spelling of 1006728273401 in words is "one trillion, six billion, seven hundred twenty-eight million, two hundred seventy-three thousand, four hundred one".