3866240685527 has 8 divisors (see below), whose sum is σ = 4271105936640. Its totient is φ = 3470273571960.

The previous prime is 3866240685493. The next prime is 3866240685563. The reversal of 3866240685527 is 7255860426683.

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 3866240685527 - 2¹⁰ = 3866240684503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3866240685527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866240685127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2224533473 + ... + 2224535210.

It is an arithmetic number, because the mean of its divisors is an integer number (533888242080).

Almost surely, 2^{3866240685527} is an apocalyptic number.

3866240685527 is a deficient number, since it is larger than the sum of its proper divisors (404865251113).

3866240685527 is a wasteful number, since it uses less digits than its factorization.

3866240685527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4449068773.

The product of its (nonzero) digits is 116121600, while the sum is 62.

The spelling of 3866240685527 in words is "three trillion, eight hundred sixty-six billion, two hundred forty million, six hundred eighty-five thousand, five hundred twenty-seven".