649853208575 has 12 divisors (see below), whose sum is σ = 805828819488. Its totient is φ = 519875572800.

The previous prime is 649853208551. The next prime is 649853208577. The reversal of 649853208575 is 575802358946.

It is a de Polignac number, because none of the positive numbers 2^k-649853208575 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649853208577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2558315 + ... + 2800835.

It is an arithmetic number, because the mean of its divisors is an integer number (67152401624).

Almost surely, 2^649853208575 is an apocalyptic number.

649853208575 is a deficient number, since it is larger than the sum of its proper divisors (155975610913).

649853208575 is a wasteful number, since it uses less digits than its factorization.

649853208575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349714 (or 349709 counting only the distinct ones).

The product of its (nonzero) digits is 72576000, while the sum is 62.

The spelling of 649853208575 in words is "six hundred forty-nine billion, eight hundred fifty-three million, two hundred eight thousand, five hundred seventy-five".