3864728862755 has 16 divisors (see below), whose sum is σ = 4843839769920. Its totient is φ = 2954591173248.

The previous prime is 3864728862737. The next prime is 3864728862763. The reversal of 3864728862755 is 5572688274683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3864728862755 is a prime.

It is a super-2 number, since 2×3864728862755² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15595652 + ... + 15841521.

It is an arithmetic number, because the mean of its divisors is an integer number (302739985620).

Almost surely, 2^{3864728862755} is an apocalyptic number.

3864728862755 is a deficient number, since it is larger than the sum of its proper divisors (979110907165).

3864728862755 is a wasteful number, since it uses less digits than its factorization.

3864728862755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31438270.

The product of its digits is 1083801600, while the sum is 71.

The spelling of 3864728862755 in words is "three trillion, eight hundred sixty-four billion, seven hundred twenty-eight million, eight hundred sixty-two thousand, seven hundred fifty-five".