5188768381 has 4 divisors (see below), whose sum is σ = 5203721952. Its totient is φ = 5173814812.

The previous prime is 5188768379. The next prime is 5188768411. The reversal of 5188768381 is 1838678815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5188768381 - 2¹ = 5188768379 is a prime.

It is a super-2 number, since 2×5188768381² = 53846634623330722322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5188768331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7476265 + ... + 7476958.

It is an arithmetic number, because the mean of its divisors is an integer number (1300930488).

Almost surely, 2^5188768381 is an apocalyptic number.

It is an amenable number.

5188768381 is a deficient number, since it is larger than the sum of its proper divisors (14953571).

5188768381 is a wasteful number, since it uses less digits than its factorization.

5188768381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14953570.

The product of its digits is 2580480, while the sum is 55.

The square root of 5188768381 is about 72033.1061457161. The cubic root of 5188768381 is about 1731.2299695476.

The spelling of 5188768381 in words is "five billion, one hundred eighty-eight million, seven hundred sixty-eight thousand, three hundred eighty-one".