6450870528 has 54 divisors (see below), whose sum is σ = 18599456694. Its totient is φ = 2150289408.

The previous prime is 6450870511. The next prime is 6450870529. The reversal of 6450870528 is 8250780546.

6450870528 is a `hidden beast` number, since 6 + 4 + 50 + 8 + 70 + 528 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6265039104 + 185831424 = 79152^2 + 13632^2 .

It is a super-2 number, since 2×6450870528² = 83227461138037997568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6450870529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1397625 + ... + 1402232.

Almost surely, 2^6450870528 is an apocalyptic number.

It is an amenable number.

6450870528 is an abundant number, since it is smaller than the sum of its proper divisors (12148586166).

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

6450870528 is a wasteful number, since it uses less digits than its factorization.

6450870528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799879 (or 2799862 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 6450870528 is about 80317.3115087899. The cubic root of 6450870528 is about 1861.5417255497.

The spelling of 6450870528 in words is "six billion, four hundred fifty million, eight hundred seventy thousand, five hundred twenty-eight".