6391252163 has 4 divisors (see below), whose sum is σ = 6401887128. Its totient is φ = 6380617200.

The previous prime is 6391252117. The next prime is 6391252181. The reversal of 6391252163 is 3612521936.

6391252163 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6391252163 - 2⁶ = 6391252099 is a prime.

It is a super-2 number, since 2×6391252163² = 81696208422104357138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6391252103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5316581 + ... + 5317782.

It is an arithmetic number, because the mean of its divisors is an integer number (1600471782).

Almost surely, 2^6391252163 is an apocalyptic number.

6391252163 is a deficient number, since it is larger than the sum of its proper divisors (10634965).

6391252163 is a wasteful number, since it uses less digits than its factorization.

6391252163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634964.

The product of its digits is 58320, while the sum is 38.

The square root of 6391252163 is about 79945.3073231944. The cubic root of 6391252163 is about 1855.7892339370.

The spelling of 6391252163 in words is "six billion, three hundred ninety-one million, two hundred fifty-two thousand, one hundred sixty-three".