3651547849 has 8 divisors (see below), whose sum is σ = 3674355912. Its totient is φ = 3628759680.

The previous prime is 3651547799. The next prime is 3651547853. The reversal of 3651547849 is 9487451563.

3651547849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1494595600 + 2156952249 = 38660^2 + 46443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3651547849 - 2³¹ = 1504064201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3651547796 and 3651547805.

It is not an unprimeable number, because it can be changed into a prime (3651547049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553957 + ... + 560509.

It is an arithmetic number, because the mean of its divisors is an integer number (459294489).

Almost surely, 2^3651547849 is an apocalyptic number.

It is an amenable number.

3651547849 is a deficient number, since it is larger than the sum of its proper divisors (22808063).

3651547849 is a wasteful number, since it uses less digits than its factorization.

3651547849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947.

The product of its digits is 3628800, while the sum is 52.

The square root of 3651547849 is about 60428.0385996435. The cubic root of 3651547849 is about 1539.8993369014.

The spelling of 3651547849 in words is "three billion, six hundred fifty-one million, five hundred forty-seven thousand, eight hundred forty-nine".