6531364438 has 8 divisors (see below), whose sum is σ = 9898047432. Its totient is φ = 3232015296.

The previous prime is 6531364403. The next prime is 6531364459. The reversal of 6531364438 is 8344631356.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 6531364394 and 6531364403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16833220 + ... + 16833607.

It is an arithmetic number, because the mean of its divisors is an integer number (1237255929).

Almost surely, 2^6531364438 is an apocalyptic number.

6531364438 is a deficient number, since it is larger than the sum of its proper divisors (3366682994).

6531364438 is a wasteful number, since it uses less digits than its factorization.

6531364438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666926.

The product of its digits is 622080, while the sum is 43.

The square root of 6531364438 is about 80816.8573875525. The cubic root of 6531364438 is about 1869.2525097350.

The spelling of 6531364438 in words is "six billion, five hundred thirty-one million, three hundred sixty-four thousand, four hundred thirty-eight".