5388666891 has 8 divisors (see below), whose sum is σ = 7265618640. Its totient is φ = 3552079872.

The previous prime is 5388666869. The next prime is 5388666901. The reversal of 5388666891 is 1986668835.

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

It is not a de Polignac number, because 5388666891 - 2⁷ = 5388666763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5388666091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10090870 + ... + 10091403.

It is an arithmetic number, because the mean of its divisors is an integer number (908202330).

Almost surely, 2^5388666891 is an apocalyptic number.

5388666891 is a deficient number, since it is larger than the sum of its proper divisors (1876951749).

5388666891 is a wasteful number, since it uses less digits than its factorization.

5388666891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20182365.

The product of its digits is 14929920, while the sum is 60.

The square root of 5388666891 is about 73407.5397421818. The cubic root of 5388666891 is about 1753.1824421327.

The spelling of 5388666891 in words is "five billion, three hundred eighty-eight million, six hundred sixty-six thousand, eight hundred ninety-one".