5271399668 has 24 divisors (see below), whose sum is σ = 9450061824. Its totient is φ = 2572063200.

The previous prime is 5271399659. The next prime is 5271399677. The reversal of 5271399668 is 8669931725.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5271399659) and next prime (5271399677).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54068 + ... + 116043.

It is an arithmetic number, because the mean of its divisors is an integer number (393752576).

Almost surely, 2^5271399668 is an apocalyptic number.

It is an amenable number.

5271399668 is a deficient number, since it is larger than the sum of its proper divisors (4178662156).

5271399668 is a wasteful number, since it uses less digits than its factorization.

5271399668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170303 (or 170301 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 56.

The square root of 5271399668 is about 72604.4052933429. The cubic root of 5271399668 is about 1740.3715756409.

The spelling of 5271399668 in words is "five billion, two hundred seventy-one million, three hundred ninety-nine thousand, six hundred sixty-eight".