6448156260 has 192 divisors, whose sum is σ = 23187935232. Its totient is φ = 1301313024.

The previous prime is 6448156199. The next prime is 6448156261. The reversal of 6448156260 is 626518446.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (6448156261) 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 63 ways as a sum of consecutive naturals, for example, 99907 + ... + 151253.

It is an arithmetic number, because the mean of its divisors is an integer number (120770496).

Almost surely, 2^6448156260 is an apocalyptic number.

6448156260 is a gapful number since it is divisible by the number (60) 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 6448156260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11593967616).

6448156260 is an abundant number, since it is smaller than the sum of its proper divisors (16739778972).

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

6448156260 is a wasteful number, since it uses less digits than its factorization.

6448156260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51402 (or 51400 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 42.

The square root of 6448156260 is about 80300.4125767732. The cubic root of 6448156260 is about 1861.2806015178.

The spelling of 6448156260 in words is "six billion, four hundred forty-eight million, one hundred fifty-six thousand, two hundred sixty".