3886945481 has 8 divisors (see below), whose sum is σ = 3952882944. Its totient is φ = 3821319040.

The previous prime is 3886945459. The next prime is 3886945523. The reversal of 3886945481 is 1845496883.

It is a happy number.

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 3886945481 - 2⁶ = 3886945417 is a prime.

It is a super-2 number, since 2×3886945481² = 30216690344532642722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3886945981) 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 7 ways as a sum of consecutive naturals, for example, 52481 + ... + 102606.

It is an arithmetic number, because the mean of its divisors is an integer number (494110368).

Almost surely, 2^3886945481 is an apocalyptic number.

It is an amenable number.

3886945481 is a deficient number, since it is larger than the sum of its proper divisors (65937463).

3886945481 is a wasteful number, since it uses less digits than its factorization.

3886945481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155511.

The product of its digits is 6635520, while the sum is 56.

The square root of 3886945481 is about 62345.3725708653. The cubic root of 3886945481 is about 1572.3026620662.

The spelling of 3886945481 in words is "three billion, eight hundred eighty-six million, nine hundred forty-five thousand, four hundred eighty-one".