6334386520 has 128 divisors (see below), whose sum is σ = 17837107200. Its totient is φ = 1966809600.

The previous prime is 6334386517. The next prime is 6334386533. The reversal of 6334386520 is 256834336.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 830886 + ... + 838474.

It is an arithmetic number, because the mean of its divisors is an integer number (139352400).

Almost surely, 2^6334386520 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 6334386520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8918553600).

6334386520 is an abundant number, since it is smaller than the sum of its proper divisors (11502720680).

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

6334386520 is a wasteful number, since it uses less digits than its factorization.

6334386520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889 (or 7885 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The square root of 6334386520 is about 79588.8592706291. The cubic root of 6334386520 is about 1850.2689182976.

The spelling of 6334386520 in words is "six billion, three hundred thirty-four million, three hundred eighty-six thousand, five hundred twenty".