4640645536263 has 24 divisors (see below), whose sum is σ = 7312722118416. Its totient is φ = 2812439462400.

The previous prime is 4640645536237. The next prime is 4640645536277. The reversal of 4640645536263 is 3626355460464.

4640645536263 is a `hidden beast` number, since 4 + 6 + 4 + 0 + 6 + 4 + 5 + 5 + 3 + 626 + 3 = 666.

It is not a de Polignac number, because 4640645536263 - 2⁵ = 4640645536231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640645536283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3355981 + ... + 4532537.

It is an arithmetic number, because the mean of its divisors is an integer number (304696754934).

Almost surely, 2^{4640645536263} is an apocalyptic number.

4640645536263 is a deficient number, since it is larger than the sum of its proper divisors (2672076582153).

4640645536263 is a wasteful number, since it uses less digits than its factorization.

4640645536263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216415 (or 1216412 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 54.

The spelling of 4640645536263 in words is "four trillion, six hundred forty billion, six hundred forty-five million, five hundred thirty-six thousand, two hundred sixty-three".