5169170947645 has 4 divisors (see below), whose sum is σ = 6203005137180. Its totient is φ = 4135336758112.

The previous prime is 5169170947571. The next prime is 5169170947651. The reversal of 5169170947645 is 5467490719615.

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 4044752478649 + 1124418468996 = 2011157^2 + 1060386^2 .

It is a cyclic number.

It is not a de Polignac number, because 5169170947645 - 2⁷ = 5169170947517 is a prime.

It is a super-3 number, since 3×5169170947645³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516917094760 + ... + 516917094769.

It is an arithmetic number, because the mean of its divisors is an integer number (1550751284295).

Almost surely, 2^{5169170947645} is an apocalyptic number.

It is an amenable number.

5169170947645 is a deficient number, since it is larger than the sum of its proper divisors (1033834189535).

5169170947645 is a wasteful number, since it uses less digits than its factorization.

5169170947645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033834189534.

The product of its (nonzero) digits is 57153600, while the sum is 64.

The spelling of 5169170947645 in words is "five trillion, one hundred sixty-nine billion, one hundred seventy million, nine hundred forty-seven thousand, six hundred forty-five".