3864704137856 has 32 divisors (see below), whose sum is σ = 7710357586080. Its totient is φ = 1929555567360.

The previous prime is 3864704137793. The next prime is 3864704137859. The reversal of 3864704137856 is 6587314074683.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×3864704137856² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3864704137859) 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 3 ways as a sum of consecutive naturals, for example, 21758876 + ... + 21935771.

It is an arithmetic number, because the mean of its divisors is an integer number (240948674565).

Almost surely, 2^{3864704137856} is an apocalyptic number.

It is an amenable number.

3864704137856 is a deficient number, since it is larger than the sum of its proper divisors (3845653448224).

3864704137856 is an equidigital number, since it uses as much as digits as its factorization.

3864704137856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43695352 (or 43695340 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 62.

The spelling of 3864704137856 in words is "three trillion, eight hundred sixty-four billion, seven hundred four million, one hundred thirty-seven thousand, eight hundred fifty-six".