3661152447 has 4 divisors (see below), whose sum is σ = 4881536600. Its totient is φ = 2440768296.

The previous prime is 3661152437. The next prime is 3661152511. The reversal of 3661152447 is 7442511663.

It is a happy number.

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

It is not a de Polignac number, because 3661152447 - 2¹⁹ = 3660628159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661152437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610192072 + ... + 610192077.

It is an arithmetic number, because the mean of its divisors is an integer number (1220384150).

Almost surely, 2^3661152447 is an apocalyptic number.

3661152447 is a deficient number, since it is larger than the sum of its proper divisors (1220384153).

3661152447 is a wasteful number, since it uses less digits than its factorization.

3661152447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220384152.

The product of its digits is 120960, while the sum is 39.

The square root of 3661152447 is about 60507.4577800125. The cubic root of 3661152447 is about 1541.2482777005.

The spelling of 3661152447 in words is "three billion, six hundred sixty-one million, one hundred fifty-two thousand, four hundred forty-seven".