3663745449 has 32 divisors (see below), whose sum is σ = 6017163264. Its totient is φ = 1930962240.

The previous prime is 3663745333. The next prime is 3663745489. The reversal of 3663745449 is 9445473663.

It is a happy number.

It is not a de Polignac number, because 3663745449 - 2⁹ = 3663744937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3663745489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 383764 + ... + 393194.

It is an arithmetic number, because the mean of its divisors is an integer number (188036352).

Almost surely, 2^3663745449 is an apocalyptic number.

3663745449 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3663745449 is a deficient number, since it is larger than the sum of its proper divisors (2353417815).

3663745449 is a wasteful number, since it uses less digits than its factorization.

3663745449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10877.

The product of its digits is 6531840, while the sum is 51.

The square root of 3663745449 is about 60528.8811147208. The cubic root of 3663745449 is about 1541.6120535700.

The spelling of 3663745449 in words is "three billion, six hundred sixty-three million, seven hundred forty-five thousand, four hundred forty-nine".