863457366213 has 24 divisors (see below), whose sum is σ = 1343922426392. Its totient is φ = 531055139328.

The previous prime is 863457366193. The next prime is 863457366229. The reversal of 863457366213 is 312663754368.

863457366213 is a `hidden beast` number, since 8 + 6 + 3 + 4 + 5 + 7 + 3 + 6 + 621 + 3 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 170431085889 + 693026280324 = 412833^2 + 832482^2 .

It is not a de Polignac number, because 863457366213 - 2³² = 859162398917 is a prime.

It is a super-2 number, since 2×863457366213² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 863457366213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863457366263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1899856 + ... + 2310057.

Almost surely, 2^863457366213 is an apocalyptic number.

It is an amenable number.

863457366213 is a deficient number, since it is larger than the sum of its proper divisors (480465060179).

863457366213 is a wasteful number, since it uses less digits than its factorization.

863457366213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211685 (or 4211682 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 863457366213 in words is "eight hundred sixty-three billion, four hundred fifty-seven million, three hundred sixty-six thousand, two hundred thirteen".