6422891748 has 192 divisors, whose sum is σ = 18925885440. Its totient is φ = 1650355200.

The previous prime is 6422891743. The next prime is 6422891759. The reversal of 6422891748 is 8471982246.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6422891748.

It is not an unprimeable number, because it can be changed into a prime (6422891743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8439688 + ... + 8440448.

It is an arithmetic number, because the mean of its divisors is an integer number (98572320).

Almost surely, 2^6422891748 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 6422891748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9462942720).

6422891748 is an abundant number, since it is smaller than the sum of its proper divisors (12502993692).

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

6422891748 is a wasteful number, since it uses less digits than its factorization.

6422891748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 976 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 6422891748 is about 80142.9457157647. The cubic root of 6422891748 is about 1858.8465261238.

The spelling of 6422891748 in words is "six billion, four hundred twenty-two million, eight hundred ninety-one thousand, seven hundred forty-eight".