3868949045 has 16 divisors (see below), whose sum is σ = 5025014400. Its totient is φ = 2842703424.

The previous prime is 3868949041. The next prime is 3868949053. The reversal of 3868949045 is 5409498683.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3868949045 - 2² = 3868949041 is a prime.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868949041) 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 15 ways as a sum of consecutive naturals, for example, 136619 + ... + 162488.

It is an arithmetic number, because the mean of its divisors is an integer number (314063400).

Almost surely, 2^3868949045 is an apocalyptic number.

It is an amenable number.

3868949045 is a deficient number, since it is larger than the sum of its proper divisors (1156065355).

3868949045 is a wasteful number, since it uses less digits than its factorization.

3868949045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299324.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The square root of 3868949045 is about 62200.8765613476. The cubic root of 3868949045 is about 1569.8723367059.

The spelling of 3868949045 in words is "three billion, eight hundred sixty-eight million, nine hundred forty-nine thousand, forty-five".