3858555879 has 32 divisors (see below), whose sum is σ = 6057777600. Its totient is φ = 2423070720.

The previous prime is 3858555871. The next prime is 3858555887. The reversal of 3858555879 is 9785558583.

3858555879 is a `hidden beast` number, since 3 + 8 + 5 + 8 + 5 + 558 + 79 = 666.

It is an interprime number because it is at equal distance from previous prime (3858555871) and next prime (3858555887).

It is not a de Polignac number, because 3858555879 - 2³ = 3858555871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3858555871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27994 + ... + 92199.

It is an arithmetic number, because the mean of its divisors is an integer number (189305550).

Almost surely, 2^3858555879 is an apocalyptic number.

3858555879 is a deficient number, since it is larger than the sum of its proper divisors (2199221721).

3858555879 is a wasteful number, since it uses less digits than its factorization.

3858555879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120272 (or 120266 counting only the distinct ones).

The product of its digits is 60480000, while the sum is 63.

The square root of 3858555879 is about 62117.2752058556. The cubic root of 3858555879 is about 1568.4653589712.

The spelling of 3858555879 in words is "three billion, eight hundred fifty-eight million, five hundred fifty-five thousand, eight hundred seventy-nine".