5169991531 has 8 divisors (see below), whose sum is σ = 5181953600. Its totient is φ = 5158044360.

The previous prime is 5169991487. The next prime is 5169991597. The reversal of 5169991531 is 1351999615.

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-5169991531 is a prime.

It is a super-2 number, since 2×5169991531² = 53457624861223447922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5169991031) 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 7 ways as a sum of consecutive naturals, for example, 951340 + ... + 956758.

It is an arithmetic number, because the mean of its divisors is an integer number (647744200).

Almost surely, 2^5169991531 is an apocalyptic number.

5169991531 is a deficient number, since it is larger than the sum of its proper divisors (11962069).

5169991531 is a wasteful number, since it uses less digits than its factorization.

5169991531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7449.

The product of its digits is 328050, while the sum is 49.

The square root of 5169991531 is about 71902.6531568898. The cubic root of 5169991531 is about 1729.1391499351.

The spelling of 5169991531 in words is "five billion, one hundred sixty-nine million, nine hundred ninety-one thousand, five hundred thirty-one".