6426322840 has 64 divisors (see below), whose sum is σ = 16593572160. Its totient is φ = 2194145280.

The previous prime is 6426322829. The next prime is 6426322849. The reversal of 6426322840 is 482236246.

It is a self number, because there is not a number n which added to its sum of digits gives 6426322840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6426322849) 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 15 ways as a sum of consecutive naturals, for example, 19864 + ... + 115096.

It is an arithmetic number, because the mean of its divisors is an integer number (259274565).

Almost surely, 2^6426322840 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 6426322840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8296786080).

6426322840 is an abundant number, since it is smaller than the sum of its proper divisors (10167249320).

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

6426322840 is a wasteful number, since it uses less digits than its factorization.

6426322840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95492 (or 95488 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The square root of 6426322840 is about 80164.3489339245. The cubic root of 6426322840 is about 1859.1774641888.

It can be divided in two parts, 6426 and 322840, that added together give a triangular number (329266 = T₈₁₁).

The spelling of 6426322840 in words is "six billion, four hundred twenty-six million, three hundred twenty-two thousand, eight hundred forty".