6538421031 has 16 divisors (see below), whose sum is σ = 8827440384. Its totient is φ = 4304228544.

The previous prime is 6538421023. The next prime is 6538421063. The reversal of 6538421031 is 1301248356.

It is not a de Polignac number, because 6538421031 - 2³ = 6538421023 is a prime.

It is a super-2 number, since 2×6538421031² = 85501899157246205922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6538420983 and 6538421001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6538421011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586350 + ... + 597396.

It is an arithmetic number, because the mean of its divisors is an integer number (551715024).

Almost surely, 2^6538421031 is an apocalyptic number.

6538421031 is a deficient number, since it is larger than the sum of its proper divisors (2289019353).

6538421031 is a wasteful number, since it uses less digits than its factorization.

6538421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13510.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 6538421031 is about 80860.5035292262. The cubic root of 6538421031 is about 1869.9254577700.

Adding to 6538421031 its reverse (1301248356), we get a palindrome (7839669387).

The spelling of 6538421031 in words is "six billion, five hundred thirty-eight million, four hundred twenty-one thousand, thirty-one".