3870388856 has 32 divisors (see below), whose sum is σ = 7387545600. Its totient is φ = 1900635360.

The previous prime is 3870388831. The next prime is 3870388867. The reversal of 3870388856 is 6588830783.

It is a congruent number.

It is an unprimeable number.

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, 104681 + ... + 136743.

It is an arithmetic number, because the mean of its divisors is an integer number (230860800).

Almost surely, 2^3870388856 is an apocalyptic number.

It is an amenable number.

3870388856 is a deficient number, since it is larger than the sum of its proper divisors (3517156744).

3870388856 is a wasteful number, since it uses less digits than its factorization.

3870388856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32339 (or 32335 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The square root of 3870388856 is about 62212.4493650588. The cubic root of 3870388856 is about 1570.0670527301.

The spelling of 3870388856 in words is "three billion, eight hundred seventy million, three hundred eighty-eight thousand, eight hundred fifty-six".