6720723824 has 10 divisors (see below), whose sum is σ = 13021402440. Its totient is φ = 3360361904.

The previous prime is 6720723811. The next prime is 6720723887. The reversal of 6720723824 is 4283270276.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210022604 + ... + 210022635.

It is an arithmetic number, because the mean of its divisors is an integer number (1302140244).

Almost surely, 2^6720723824 is an apocalyptic number.

It is an amenable number.

6720723824 is a deficient number, since it is larger than the sum of its proper divisors (6300678616).

6720723824 is a wasteful number, since it uses less digits than its factorization.

6720723824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420045247 (or 420045241 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 6720723824 is about 81980.0208831396. The cubic root of 6720723824 is about 1887.1453432681.

The spelling of 6720723824 in words is "six billion, seven hundred twenty million, seven hundred twenty-three thousand, eight hundred twenty-four".