6722479800 has 72 divisors (see below), whose sum is σ = 22576334040. Its totient is φ = 1792660800.

The previous prime is 6722479793. The next prime is 6722479817. The reversal of 6722479800 is 89742276.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×6722479800² = 90383469322816080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1865556 + ... + 1869155.

It is an arithmetic number, because the mean of its divisors is an integer number (313560195).

Almost surely, 2^6722479800 is an apocalyptic number.

6722479800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6722479800 is an abundant number, since it is smaller than the sum of its proper divisors (15853854240).

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

6722479800 is a wasteful number, since it uses less digits than its factorization.

6722479800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3734733 (or 3734721 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 6722479800 is about 81990.7299638197. The cubic root of 6722479800 is about 1887.3096853565.

The spelling of 6722479800 in words is "six billion, seven hundred twenty-two million, four hundred seventy-nine thousand, eight hundred".