5239169649 has 24 divisors (see below), whose sum is σ = 9103989440. Its totient is φ = 2836241568.

The previous prime is 5239169627. The next prime is 5239169659. The reversal of 5239169649 is 9469619325.

It is not a de Polignac number, because 5239169649 - 2⁸ = 5239169393 is a prime.

It is a super-2 number, since 2×5239169649² = 54897797222005566402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5239169595 and 5239169604.

It is not an unprimeable number, because it can be changed into a prime (5239169659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2187262 + ... + 2189655.

Almost surely, 2^5239169649 is an apocalyptic number.

It is an amenable number.

5239169649 is a deficient number, since it is larger than the sum of its proper divisors (3864819791).

5239169649 is a wasteful number, since it uses less digits than its factorization.

5239169649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376949 (or 4376946 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 5239169649 is about 72382.1086249910. The cubic root of 5239169649 is about 1736.8173698810.

The spelling of 5239169649 in words is "five billion, two hundred thirty-nine million, one hundred sixty-nine thousand, six hundred forty-nine".