863263457253 has 32 divisors (see below), whose sum is σ = 1304688107520. Its totient is φ = 564005378160.

The previous prime is 863263457237. The next prime is 863263457261. The reversal of 863263457253 is 352754362368.

863263457253 is a `hidden beast` number, since 8 + 6 + 3 + 2 + 63 + 4 + 572 + 5 + 3 = 666.

It is not a de Polignac number, because 863263457253 - 2⁴ = 863263457237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 863263457253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863263457263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1028125 + ... + 1668402.

It is an arithmetic number, because the mean of its divisors is an integer number (40771503360).

Almost surely, 2^863263457253 is an apocalyptic number.

It is an amenable number.

863263457253 is a deficient number, since it is larger than the sum of its proper divisors (441424650267).

863263457253 is a wasteful number, since it uses less digits than its factorization.

863263457253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696774 (or 2696768 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 54.

The spelling of 863263457253 in words is "eight hundred sixty-three billion, two hundred sixty-three million, four hundred fifty-seven thousand, two hundred fifty-three".