652640645727 has 48 divisors (see below), whose sum is σ = 1154601776640. Its totient is φ = 347081651136.

The previous prime is 652640645693. The next prime is 652640645753. The reversal of 652640645727 is 727546046256.

652640645727 is a `hidden beast` number, since 6 + 5 + 2 + 6 + 4 + 0 + 64 + 572 + 7 = 666.

It is not a de Polignac number, because 652640645727 - 2¹⁹ = 652640121439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652640645227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6032977 + ... + 6140202.

It is an arithmetic number, because the mean of its divisors is an integer number (24054203680).

Almost surely, 2^652640645727 is an apocalyptic number.

652640645727 is a deficient number, since it is larger than the sum of its proper divisors (501961130913).

652640645727 is a wasteful number, since it uses less digits than its factorization.

652640645727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12173252 (or 12173249 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 54.

The spelling of 652640645727 in words is "six hundred fifty-two billion, six hundred forty million, six hundred forty-five thousand, seven hundred twenty-seven".