6531194028 has 48 divisors (see below), whose sum is σ = 16440369120. Its totient is φ = 2010338304.

The previous prime is 6531193967. The next prime is 6531194029. The reversal of 6531194028 is 8204911356.

It is not an unprimeable number, because it can be changed into a prime (6531194029) 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, 291223 + ... + 312846.

It is an arithmetic number, because the mean of its divisors is an integer number (342507690).

Almost surely, 2^6531194028 is an apocalyptic number.

6531194028 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

6531194028 is an abundant number, since it is smaller than the sum of its proper divisors (9909175092).

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

6531194028 is a wasteful number, since it uses less digits than its factorization.

6531194028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604146 (or 604144 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 6531194028 is about 80815.8030833079. The cubic root of 6531194028 is about 1869.2362526883.

The spelling of 6531194028 in words is "six billion, five hundred thirty-one million, one hundred ninety-four thousand, twenty-eight".