5644377138 has 16 divisors (see below), whose sum is σ = 11290378176. Its totient is φ = 1881188400.

The previous prime is 5644377127. The next prime is 5644377143. The reversal of 5644377138 is 8317734465.

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, 19881 + ... + 108092.

It is an arithmetic number, because the mean of its divisors is an integer number (705648636).

Almost surely, 2^5644377138 is an apocalyptic number.

5644377138 is an abundant number, since it is smaller than the sum of its proper divisors (5646001038).

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

5644377138 is a wasteful number, since it uses less digits than its factorization.

5644377138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135329.

The product of its digits is 1693440, while the sum is 48.

The square root of 5644377138 is about 75129.0698598086. The cubic root of 5644377138 is about 1780.4864573311.

The spelling of 5644377138 in words is "five billion, six hundred forty-four million, three hundred seventy-seven thousand, one hundred thirty-eight".