5009991249 has 4 divisors (see below), whose sum is σ = 6679988336. Its totient is φ = 3339994164.

The previous prime is 5009991209. The next prime is 5009991271. The reversal of 5009991249 is 9421999005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-5009991249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5009991198 and 5009991207.

It is not an unprimeable number, because it can be changed into a prime (5009991209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834998539 + ... + 834998544.

It is an arithmetic number, because the mean of its divisors is an integer number (1669997084).

Almost surely, 2^5009991249 is an apocalyptic number.

It is an amenable number.

5009991249 is a deficient number, since it is larger than the sum of its proper divisors (1669997087).

5009991249 is a wasteful number, since it uses less digits than its factorization.

5009991249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669997086.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 5009991249 is about 70781.2916595904. The cubic root of 5009991249 is about 1711.1141752225.

The spelling of 5009991249 in words is "five billion, nine million, nine hundred ninety-one thousand, two hundred forty-nine".