2188363855 has 8 divisors (see below), whose sum is σ = 2764249200. Its totient is φ = 1658549376.

The previous prime is 2188363841. The next prime is 2188363861. The reversal of 2188363855 is 5583638812.

It is a happy number.

2188363855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2188363855 - 2³¹ = 40880207 is a prime.

It is a super-2 number, since 2×2188363855² = 9577872723740922050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2188363799 and 2188363808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11517610 + ... + 11517799.

It is an arithmetic number, because the mean of its divisors is an integer number (345531150).

Almost surely, 2^2188363855 is an apocalyptic number.

2188363855 is a deficient number, since it is larger than the sum of its proper divisors (575885345).

2188363855 is a wasteful number, since it uses less digits than its factorization.

2188363855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23035433.

The product of its digits is 1382400, while the sum is 49.

The square root of 2188363855 is about 46779.9514215224. The cubic root of 2188363855 is about 1298.2943815262.

The spelling of 2188363855 in words is "two billion, one hundred eighty-eight million, three hundred sixty-three thousand, eight hundred fifty-five".