1253007172793 has 4 divisors (see below), whose sum is σ = 1254556008180. Its totient is φ = 1251458337408.

The previous prime is 1253007172759. The next prime is 1253007172819. The reversal of 1253007172793 is 3972717003521.

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 848780791849 + 404226380944 = 921293^2 + 635788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1253007172793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1253007172393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 774416480 + ... + 774418097.

It is an arithmetic number, because the mean of its divisors is an integer number (313639002045).

Almost surely, 2^{1253007172793} is an apocalyptic number.

It is an amenable number.

1253007172793 is a deficient number, since it is larger than the sum of its proper divisors (1548835387).

1253007172793 is an equidigital number, since it uses as much as digits as its factorization.

1253007172793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548835386.

The product of its (nonzero) digits is 555660, while the sum is 47.

The spelling of 1253007172793 in words is "one trillion, two hundred fifty-three billion, seven million, one hundred seventy-two thousand, seven hundred ninety-three".