5091687531 has 12 divisors (see below), whose sum is σ = 8405325552. Its totient is φ = 2909535696.

The previous prime is 5091687529. The next prime is 5091687547. The reversal of 5091687531 is 1357861905.

It is a happy number.

5091687531 is a `hidden beast` number, since 50 + 9 + 1 + 68 + 7 + 531 = 666.

It is not a de Polignac number, because 5091687531 - 2¹ = 5091687529 is a prime.

It is a super-2 number, since 2×5091687531² = 51850563826681751922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (5091687571) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40410156 + ... + 40410281.

It is an arithmetic number, because the mean of its divisors is an integer number (700443796).

Almost surely, 2^5091687531 is an apocalyptic number.

5091687531 is a deficient number, since it is larger than the sum of its proper divisors (3313638021).

5091687531 is a wasteful number, since it uses less digits than its factorization.

5091687531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80820450 (or 80820447 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 5091687531 is about 71356.0616275870. The cubic root of 5091687531 is about 1720.3649319189.

The spelling of 5091687531 in words is "five billion, ninety-one million, six hundred eighty-seven thousand, five hundred thirty-one".