3886757641 has 8 divisors (see below), whose sum is σ = 4189951304. Its totient is φ = 3584165760.

The previous prime is 3886757627. The next prime is 3886757669. The reversal of 3886757641 is 1467576883.

It can be written as a sum of positive squares in 4 ways, for example, as 1329331600 + 2557426041 = 36460^2 + 50571^2 .

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 3886757641 - 2⁹ = 3886757129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3886757671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136980 + ... + 162901.

It is an arithmetic number, because the mean of its divisors is an integer number (523743913).

Almost surely, 2^3886757641 is an apocalyptic number.

It is an amenable number.

3886757641 is a deficient number, since it is larger than the sum of its proper divisors (303193663).

3886757641 is a wasteful number, since it uses less digits than its factorization.

3886757641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300891.

The product of its digits is 6773760, while the sum is 55.

The square root of 3886757641 is about 62343.8661056563. The cubic root of 3886757641 is about 1572.2773340298.

The spelling of 3886757641 in words is "three billion, eight hundred eighty-six million, seven hundred fifty-seven thousand, six hundred forty-one".