6520042746 has 24 divisors (see below), whose sum is σ = 16144868064. Its totient is φ = 1862869320.

The previous prime is 6520042733. The next prime is 6520042751. The reversal of 6520042746 is 6472400256.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6520042746.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25873060 + ... + 25873311.

It is an arithmetic number, because the mean of its divisors is an integer number (672702836).

Almost surely, 2^6520042746 is an apocalyptic number.

6520042746 is an abundant number, since it is smaller than the sum of its proper divisors (9624825318).

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

6520042746 is a wasteful number, since it uses less digits than its factorization.

6520042746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51746386 (or 51746383 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 6520042746 is about 80746.7816448433. The cubic root of 6520042746 is about 1868.1718094995.

The spelling of 6520042746 in words is "six billion, five hundred twenty million, forty-two thousand, seven hundred forty-six".