6564987351 has 18 divisors (see below), whose sum is σ = 10268315928. Its totient is φ = 4039991280.

The previous prime is 6564987337. The next prime is 6564987371. The reversal of 6564987351 is 1537894656.

6564987351 is a `hidden beast` number, since 6 + 564 + 9 + 8 + 73 + 5 + 1 = 666.

It is not a de Polignac number, because 6564987351 - 2¹⁰ = 6564986327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564987371) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2156595 + ... + 2159636.

It is an arithmetic number, because the mean of its divisors is an integer number (570461996).

Almost surely, 2^6564987351 is an apocalyptic number.

6564987351 is a deficient number, since it is larger than the sum of its proper divisors (3703328577).

6564987351 is a wasteful number, since it uses less digits than its factorization.

6564987351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316263 (or 4316247 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 6564987351 is about 81024.6095393245. The cubic root of 6564987351 is about 1872.4546060274.

The spelling of 6564987351 in words is "six billion, five hundred sixty-four million, nine hundred eighty-seven thousand, three hundred fifty-one".