213193885487 has 16 divisors (see below), whose sum is σ = 242772878592. Its totient is φ = 185320470720.

The previous prime is 213193885459. The next prime is 213193885493. The reversal of 213193885487 is 784588391312.

213193885487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213193885487 - 2¹² = 213193881391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213193885417) 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 15 ways as a sum of consecutive naturals, for example, 575348 + ... + 870294.

It is an arithmetic number, because the mean of its divisors is an integer number (15173304912).

Almost surely, 2^213193885487 is an apocalyptic number.

213193885487 is a deficient number, since it is larger than the sum of its proper divisors (29578993105).

213193885487 is a wasteful number, since it uses less digits than its factorization.

213193885487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297838.

The product of its digits is 11612160, while the sum is 59.

The spelling of 213193885487 in words is "two hundred thirteen billion, one hundred ninety-three million, eight hundred eighty-five thousand, four hundred eighty-seven".