6531394830 has 32 divisors (see below), whose sum is σ = 15686240544. Its totient is φ = 1740494976.

The previous prime is 6531394823. The next prime is 6531394843. The reversal of 6531394830 is 384931356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31329 + ... + 118508.

It is an arithmetic number, because the mean of its divisors is an integer number (490195017).

Almost surely, 2^6531394830 is an apocalyptic number.

6531394830 is an abundant number, since it is smaller than the sum of its proper divisors (9154845714).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6531394830 is a wasteful number, since it uses less digits than its factorization.

6531394830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151300.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 6531394830 is about 80817.0454174118. The cubic root of 6531394830 is about 1869.2554090901.

The spelling of 6531394830 in words is "six billion, five hundred thirty-one million, three hundred ninety-four thousand, eight hundred thirty".