5388331691 has 2 divisors, whose sum is σ = 5388331692. Its totient is φ = 5388331690.

The previous prime is 5388331661. The next prime is 5388331723. The reversal of 5388331691 is 1961338835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5388331691 - 2¹⁰ = 5388330667 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5388331661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2694165845 + 2694165846.

It is an arithmetic number, because the mean of its divisors is an integer number (2694165846).

Almost surely, 2^5388331691 is an apocalyptic number.

5388331691 is a deficient number, since it is larger than the sum of its proper divisors (1).

5388331691 is an equidigital number, since it uses as much as digits as its factorization.

5388331691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 5388331691 is about 73405.2565624561. The cubic root of 5388331691 is about 1753.1460893605.

The spelling of 5388331691 in words is "five billion, three hundred eighty-eight million, three hundred thirty-one thousand, six hundred ninety-one".