3855428658 has 16 divisors (see below), whose sum is σ = 8567619360. Its totient is φ = 1285142868.

The previous prime is 3855428653. The next prime is 3855428663. The reversal of 3855428658 is 8568245583.

3855428658 is a `hidden beast` number, since 3 + 8 + 554 + 2 + 86 + 5 + 8 = 666.

3855428658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3855428653) and next prime (3855428663).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 71396827 = 3855428658 / (3 + 8 + 5 + 5 + 4 + 2 + 8 + 6 + 5 + 8).

It is not an unprimeable number, because it can be changed into a prime (3855428651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35698360 + ... + 35698467.

It is an arithmetic number, because the mean of its divisors is an integer number (535476210).

Almost surely, 2^3855428658 is an apocalyptic number.

3855428658 is an abundant number, since it is smaller than the sum of its proper divisors (4712190702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3855428658 is a wasteful number, since it uses less digits than its factorization.

3855428658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71396838 (or 71396832 counting only the distinct ones).

The product of its digits is 9216000, while the sum is 54.

The square root of 3855428658 is about 62092.0981929263. The cubic root of 3855428658 is about 1568.0415161614.

The spelling of 3855428658 in words is "three billion, eight hundred fifty-five million, four hundred twenty-eight thousand, six hundred fifty-eight".