6517426520 has 64 divisors (see below), whose sum is σ = 16009539840. Its totient is φ = 2368163200.

The previous prime is 6517426511. The next prime is 6517426567. The reversal of 6517426520 is 256247156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659939 + ... + 669741.

It is an arithmetic number, because the mean of its divisors is an integer number (250149060).

Almost surely, 2^6517426520 is an apocalyptic number.

It is an amenable number.

6517426520 is an abundant number, since it is smaller than the sum of its proper divisors (9492113320).

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

6517426520 is a wasteful number, since it uses less digits than its factorization.

6517426520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11336 (or 11332 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 6517426520 is about 80730.5798319323. The cubic root of 6517426520 is about 1867.9219024707.

The spelling of 6517426520 in words is "six billion, five hundred seventeen million, four hundred twenty-six thousand, five hundred twenty".