6526453340 has 72 divisors (see below), whose sum is σ = 15843005136. Its totient is φ = 2231961600.

The previous prime is 6526453319. The next prime is 6526453369. The reversal of 6526453340 is 433546256.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6526453294 and 6526453303.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4939880 + ... + 4941200.

It is an arithmetic number, because the mean of its divisors is an integer number (220041738).

Almost surely, 2^6526453340 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 6526453340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7921502568).

6526453340 is an abundant number, since it is smaller than the sum of its proper divisors (9316551796).

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

6526453340 is a wasteful number, since it uses less digits than its factorization.

6526453340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679 (or 1356 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

The square root of 6526453340 is about 80786.4675549067. The cubic root of 6526453340 is about 1868.7838795213.

Adding to 6526453340 its reverse (433546256), we get a palindrome (6959999596).

The spelling of 6526453340 in words is "six billion, five hundred twenty-six million, four hundred fifty-three thousand, three hundred forty".