8021244672 has 360 divisors, whose sum is σ = 27745795616. Its totient is φ = 2257403904.

The previous prime is 8021244631. The next prime is 8021244739. The reversal of 8021244672 is 2764421208.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10595718 + ... + 10596474.

Almost surely, 2^8021244672 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 8021244672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13872897808).

8021244672 is an abundant number, since it is smaller than the sum of its proper divisors (19724550944).

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

8021244672 is an equidigital number, since it uses as much as digits as its factorization.

8021244672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 8021244672 is about 89561.4016862175. The cubic root of 8021244672 is about 2001.7688245021.

The spelling of 8021244672 in words is "eight billion, twenty-one million, two hundred forty-four thousand, six hundred seventy-two".