5165748391 has 4 divisors (see below), whose sum is σ = 5215901392. Its totient is φ = 5115595392.

The previous prime is 5165748353. The next prime is 5165748407. The reversal of 5165748391 is 1938475615.

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

It is a cyclic number.

It is not a de Polignac number, because 5165748391 - 2¹¹ = 5165746343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5165748691) 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 3 ways as a sum of consecutive naturals, for example, 25076346 + ... + 25076551.

It is an arithmetic number, because the mean of its divisors is an integer number (1303975348).

Almost surely, 2^5165748391 is an apocalyptic number.

5165748391 is a deficient number, since it is larger than the sum of its proper divisors (50153001).

5165748391 is a wasteful number, since it uses less digits than its factorization.

5165748391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50153000.

The product of its digits is 907200, while the sum is 49.

The square root of 5165748391 is about 71873.1409568275. The cubic root of 5165748391 is about 1728.6659713636.

The spelling of 5165748391 in words is "five billion, one hundred sixty-five million, seven hundred forty-eight thousand, three hundred ninety-one".