6573449487956 has 48 divisors (see below), whose sum is σ = 12833560578048. Its totient is φ = 2925583315200.

The previous prime is 6573449487953. The next prime is 6573449487961. The reversal of 6573449487956 is 6597849443756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6573449487953) 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, 6802940 + ... + 7708883.

It is an arithmetic number, because the mean of its divisors is an integer number (267365845376).

Almost surely, 2^{6573449487956} is an apocalyptic number.

It is an amenable number.

6573449487956 is a deficient number, since it is larger than the sum of its proper divisors (6260111090092).

6573449487956 is a wasteful number, since it uses less digits than its factorization.

6573449487956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14512152 (or 14512150 counting only the distinct ones).

The product of its digits is 5486745600, while the sum is 77.

The spelling of 6573449487956 in words is "six trillion, five hundred seventy-three billion, four hundred forty-nine million, four hundred eighty-seven thousand, nine hundred fifty-six".