8638343055 has 12 divisors (see below), whose sum is σ = 14973128040. Its totient is φ = 4607116272.

The previous prime is 8638343053. The next prime is 8638343081. The reversal of 8638343055 is 5503438368.

8638343055 is a `hidden beast` number, since 8 + 638 + 3 + 4 + 3 + 0 + 5 + 5 = 666.

It is not a de Polignac number, because 8638343055 - 2¹ = 8638343053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 191963179 = 8638343055 / (8 + 6 + 3 + 8 + 3 + 4 + 3 + 0 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 8638343055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8638343053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95981545 + ... + 95981634.

It is an arithmetic number, because the mean of its divisors is an integer number (1247760670).

Almost surely, 2^8638343055 is an apocalyptic number.

8638343055 is a deficient number, since it is larger than the sum of its proper divisors (6334784985).

8638343055 is a wasteful number, since it uses less digits than its factorization.

8638343055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191963190 (or 191963187 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The square root of 8638343055 is about 92942.6869366278. The cubic root of 8638343055 is about 2051.8399546585.

The spelling of 8638343055 in words is "eight billion, six hundred thirty-eight million, three hundred forty-three thousand, fifty-five".