213865600427 has 4 divisors (see below), whose sum is σ = 225121684680. Its totient is φ = 202609516176.

The previous prime is 213865600411. The next prime is 213865600439. The reversal of 213865600427 is 724006568312.

213865600427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213865600427 - 2⁴ = 213865600411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213865600457) 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 3 ways as a sum of consecutive naturals, for example, 5628042098 + ... + 5628042135.

It is an arithmetic number, because the mean of its divisors is an integer number (56280421170).

Almost surely, 2^213865600427 is an apocalyptic number.

213865600427 is a deficient number, since it is larger than the sum of its proper divisors (11256084253).

213865600427 is a wasteful number, since it uses less digits than its factorization.

213865600427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11256084252.

The product of its (nonzero) digits is 483840, while the sum is 44.

The spelling of 213865600427 in words is "two hundred thirteen billion, eight hundred sixty-five million, six hundred thousand, four hundred twenty-seven".