3854361618 has 128 divisors (see below), whose sum is σ = 9337420800. Its totient is φ = 1173878784.

The previous prime is 3854361611. The next prime is 3854361629. The reversal of 3854361618 is 8161634583.

3854361618 is a `hidden beast` number, since 38 + 543 + 61 + 6 + 18 = 666.

3854361618 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3854361618² = 29712206964623155848, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3854361611) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6773638 + ... + 6774206.

It is an arithmetic number, because the mean of its divisors is an integer number (72948600).

Almost surely, 2^3854361618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3854361618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4668710400).

3854361618 is an abundant number, since it is smaller than the sum of its proper divisors (5483059182).

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

3854361618 is a wasteful number, since it uses less digits than its factorization.

3854361618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801 (or 795 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 3854361618 is about 62083.5052006570. The cubic root of 3854361618 is about 1567.8968441894.

The spelling of 3854361618 in words is "three billion, eight hundred fifty-four million, three hundred sixty-one thousand, six hundred eighteen".