6442959152 has 80 divisors (see below), whose sum is σ = 14749722624. Its totient is φ = 2670811200.

The previous prime is 6442959119. The next prime is 6442959167. The reversal of 6442959152 is 2519592446.

It is a junction number, because it is equal to n+sod(n) for n = 6442959097 and 6442959106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3335627 + ... + 3337557.

Almost surely, 2^6442959152 is an apocalyptic number.

6442959152 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6442959152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7374861312).

6442959152 is an abundant number, since it is smaller than the sum of its proper divisors (8306763472).

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

6442959152 is an equidigital number, since it uses as much as digits as its factorization.

6442959152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039 (or 1971 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 6442959152 is about 80268.0456470693. The cubic root of 6442959152 is about 1860.7804132515.

The spelling of 6442959152 in words is "six billion, four hundred forty-two million, nine hundred fifty-nine thousand, one hundred fifty-two".