6523651420 has 96 divisors (see below), whose sum is σ = 16185899520. Its totient is φ = 2177352960.

The previous prime is 6523651403. The next prime is 6523651441. The reversal of 6523651420 is 241563256.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505569 + ... + 518311.

It is an arithmetic number, because the mean of its divisors is an integer number (168603120).

Almost surely, 2^6523651420 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 6523651420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8092949760).

6523651420 is an abundant number, since it is smaller than the sum of its proper divisors (9662248100).

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

6523651420 is a wasteful number, since it uses less digits than its factorization.

6523651420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12955 (or 12953 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 6523651420 is about 80769.1241750212. The cubic root of 6523651420 is about 1868.5164074268.

The spelling of 6523651420 in words is "six billion, five hundred twenty-three million, six hundred fifty-one thousand, four hundred twenty".