6728645733524 has 72 divisors (see below), whose sum is σ = 13913586419040. Its totient is φ = 2822425008000.

The previous prime is 6728645733457. The next prime is 6728645733583. The reversal of 6728645733524 is 4253375468276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27084674 + ... + 27331974.

It is an arithmetic number, because the mean of its divisors is an integer number (193244255820).

Almost surely, 2^{6728645733524} is an apocalyptic number.

It is an amenable number.

6728645733524 is an abundant number, since it is smaller than the sum of its proper divisors (7184940685516).

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

6728645733524 is a wasteful number, since it uses less digits than its factorization.

6728645733524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251001 (or 250986 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 62.

The spelling of 6728645733524 in words is "six trillion, seven hundred twenty-eight billion, six hundred forty-five million, seven hundred thirty-three thousand, five hundred twenty-four".