5170321878653 has 4 divisors (see below), whose sum is σ = 5182602928668. Its totient is φ = 5158040828640.

The previous prime is 5170321878643. The next prime is 5170321878677. The reversal of 5170321878653 is 3568781230715.

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 2140901565124 + 3029420313529 = 1463182^2 + 1740523^2 .

It is a cyclic number.

It is not a de Polignac number, because 5170321878653 - 2³⁸ = 4895443971709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5170321878613) 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, 6140524376 + ... + 6140525217.

It is an arithmetic number, because the mean of its divisors is an integer number (1295650732167).

Almost surely, 2^{5170321878653} is an apocalyptic number.

It is an amenable number.

5170321878653 is a deficient number, since it is larger than the sum of its proper divisors (12281050015).

5170321878653 is a wasteful number, since it uses less digits than its factorization.

5170321878653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12281050014.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 5170321878653 in words is "five trillion, one hundred seventy billion, three hundred twenty-one million, eight hundred seventy-eight thousand, six hundred fifty-three".