3866855377 has 32 divisors (see below), whose sum is σ = 5166249984. Its totient is φ = 2801644800.

The previous prime is 3866855371. The next prime is 3866855383. The reversal of 3866855377 is 7735586683.

It is an interprime number because it is at equal distance from previous prime (3866855371) and next prime (3866855383).

It is a cyclic number.

It is not a de Polignac number, because 3866855377 - 2¹¹ = 3866853329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3866855371) 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 31 ways as a sum of consecutive naturals, for example, 90852 + ... + 126442.

It is an arithmetic number, because the mean of its divisors is an integer number (161445312).

Almost surely, 2^3866855377 is an apocalyptic number.

It is an amenable number.

3866855377 is a deficient number, since it is larger than the sum of its proper divisors (1299394607).

3866855377 is a wasteful number, since it uses less digits than its factorization.

3866855377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35709.

The product of its digits is 25401600, while the sum is 58.

The square root of 3866855377 is about 62184.0443924324. The cubic root of 3866855377 is about 1569.5891086687.

The spelling of 3866855377 in words is "three billion, eight hundred sixty-six million, eight hundred fifty-five thousand, three hundred seventy-seven".