5391871823 has 6 divisors (see below), whose sum is σ = 5838535944. Its totient is φ = 4977112296.

The previous prime is 5391871733. The next prime is 5391871871. The reversal of 5391871823 is 3281781935.

It is not a de Polignac number, because 5391871823 - 2¹⁸ = 5391609679 is a prime.

It is a super-2 number, since 2×5391871823² = 58144563511322686658, 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 (5391871223) 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 5 ways as a sum of consecutive naturals, for example, 15952115 + ... + 15952452.

It is an arithmetic number, because the mean of its divisors is an integer number (973089324).

Almost surely, 2^5391871823 is an apocalyptic number.

5391871823 is a deficient number, since it is larger than the sum of its proper divisors (446664121).

5391871823 is a wasteful number, since it uses less digits than its factorization.

5391871823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31904593 (or 31904580 counting only the distinct ones).

The product of its digits is 362880, while the sum is 47.

The square root of 5391871823 is about 73429.3662167937. The cubic root of 5391871823 is about 1753.5299440939.

The spelling of 5391871823 in words is "five billion, three hundred ninety-one million, eight hundred seventy-one thousand, eight hundred twenty-three".