4321072672 has 48 divisors (see below), whose sum is σ = 9753633792. Its totient is φ = 1845941760.

The previous prime is 4321072661. The next prime is 4321072687. The reversal of 4321072672 is 2762701234.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39297 + ... + 100927.

It is an arithmetic number, because the mean of its divisors is an integer number (203200704).

Almost surely, 2^4321072672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4321072672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4876816896).

4321072672 is an abundant number, since it is smaller than the sum of its proper divisors (5432561120).

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

4321072672 is a wasteful number, since it uses less digits than its factorization.

4321072672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61961 (or 61953 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 4321072672 is about 65734.8664865154. The cubic root of 4321072672 is about 1628.7853587909.

The spelling of 4321072672 in words is "four billion, three hundred twenty-one million, seventy-two thousand, six hundred seventy-two".