6720251972 has 24 divisors (see below), whose sum is σ = 13442278080. Its totient is φ = 2879727840.

The previous prime is 6720251969. The next prime is 6720251977. The reversal of 6720251972 is 2791520276.

It is not an unprimeable number, because it can be changed into a prime (6720251977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341522 + ... + 360662.

It is an arithmetic number, because the mean of its divisors is an integer number (560094920).

Almost surely, 2^6720251972 is an apocalyptic number.

It is an amenable number.

6720251972 is an abundant number, since it is smaller than the sum of its proper divisors (6722026108).

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

6720251972 is a wasteful number, since it uses less digits than its factorization.

6720251972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31691 (or 31689 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 6720251972 is about 81977.1429851029. The cubic root of 6720251972 is about 1887.1011776808.

The spelling of 6720251972 in words is "six billion, seven hundred twenty million, two hundred fifty-one thousand, nine hundred seventy-two".