5436685249 has 4 divisors (see below), whose sum is σ = 5438430340. Its totient is φ = 5434940160.

The previous prime is 5436685193. The next prime is 5436685369. The reversal of 5436685249 is 9425866345.

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

It can be written as a sum of positive squares in 2 ways, for example, as 629759025 + 4806926224 = 25095^2 + 69332^2 .

It is a cyclic number.

It is not a de Polignac number, because 5436685249 - 2²³ = 5428296641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5436685196 and 5436685205.

It is not an unprimeable number, because it can be changed into a prime (5436685049) 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, 867864 + ... + 874105.

It is an arithmetic number, because the mean of its divisors is an integer number (1359607585).

Almost surely, 2^5436685249 is an apocalyptic number.

It is an amenable number.

5436685249 is a deficient number, since it is larger than the sum of its proper divisors (1745091).

5436685249 is a wasteful number, since it uses less digits than its factorization.

5436685249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745090.

The product of its digits is 6220800, while the sum is 52.

The square root of 5436685249 is about 73733.8812826234. The cubic root of 5436685249 is about 1758.3745807075.

The spelling of 5436685249 in words is "five billion, four hundred thirty-six million, six hundred eighty-five thousand, two hundred forty-nine".