5165269018921 has 8 divisors (see below), whose sum is σ = 5634890755488. Its totient is φ = 4695655920000.

The previous prime is 5165269018829. The next prime is 5165269019017. The reversal of 5165269018921 is 1298109625615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5165269018921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5165269028921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875880 + ... + 3331321.

It is an arithmetic number, because the mean of its divisors is an integer number (704361344436).

Almost surely, 2^{5165269018921} is an apocalyptic number.

It is an amenable number.

5165269018921 is a deficient number, since it is larger than the sum of its proper divisors (469621736567).

5165269018921 is a wasteful number, since it uses less digits than its factorization.

5165269018921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318823.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 5165269018921 in words is "five trillion, one hundred sixty-five billion, two hundred sixty-nine million, eighteen thousand, nine hundred twenty-one".