3903871855 has 16 divisors (see below), whose sum is σ = 5081840064. Its totient is φ = 2861809920.

The previous prime is 3903871837. The next prime is 3903871877. The reversal of 3903871855 is 5581783093.

It is not a de Polignac number, because 3903871855 - 2¹¹ = 3903869807 is a prime.

It is a super-2 number, since 2×3903871855² = 30480430920522282050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3903871799 and 3903871808.

It is a congruent number.

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, 210291 + ... + 228100.

It is an arithmetic number, because the mean of its divisors is an integer number (317615004).

Almost surely, 2^3903871855 is an apocalyptic number.

3903871855 is a deficient number, since it is larger than the sum of its proper divisors (1177968209).

3903871855 is a wasteful number, since it uses less digits than its factorization.

3903871855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438546.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 3903871855 is about 62480.9719434645. The cubic root of 3903871855 is about 1574.5816448272.

The spelling of 3903871855 in words is "three billion, nine hundred three million, eight hundred seventy-one thousand, eight hundred fifty-five".