3653749915 has 4 divisors (see below), whose sum is σ = 4384499904. Its totient is φ = 2922999928.

The previous prime is 3653749909. The next prime is 3653749919. The reversal of 3653749915 is 5199473563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5199473563 = 1709 ⋅3042407.

It is a cyclic number.

It is not a de Polignac number, because 3653749915 - 2¹³ = 3653741723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3653749919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365374987 + ... + 365374996.

It is an arithmetic number, because the mean of its divisors is an integer number (1096124976).

Almost surely, 2^3653749915 is an apocalyptic number.

3653749915 is a deficient number, since it is larger than the sum of its proper divisors (730749989).

3653749915 is an equidigital number, since it uses as much as digits as its factorization.

3653749915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730749988.

The product of its digits is 3061800, while the sum is 52.

The square root of 3653749915 is about 60446.2564184086. The cubic root of 3653749915 is about 1540.2088201400.

The spelling of 3653749915 in words is "three billion, six hundred fifty-three million, seven hundred forty-nine thousand, nine hundred fifteen".