213708643263 has 6 divisors (see below), whose sum is σ = 308690262504. Its totient is φ = 142472428836.

The previous prime is 213708643201. The next prime is 213708643301. The reversal of 213708643263 is 362346807312.

213708643263 is a `hidden beast` number, since 2 + 13 + 70 + 86 + 432 + 63 = 666.

It is not a de Polignac number, because 213708643263 - 2¹⁸ = 213708381119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213708643163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11872702395 + ... + 11872702412.

It is an arithmetic number, because the mean of its divisors is an integer number (51448377084).

Almost surely, 2^213708643263 is an apocalyptic number.

213708643263 is a deficient number, since it is larger than the sum of its proper divisors (94981619241).

213708643263 is a wasteful number, since it uses less digits than its factorization.

213708643263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23745404813 (or 23745404810 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 213708643263 in words is "two hundred thirteen billion, seven hundred eight million, six hundred forty-three thousand, two hundred sixty-three".