213552647697 has 64 divisors (see below), whose sum is σ = 309268840448. Its totient is φ = 130800096000.

The previous prime is 213552647669. The next prime is 213552647699. The reversal of 213552647697 is 796746255312.

213552647697 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 213552647697 - 2⁷ = 213552647569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213552647699) 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 63 ways as a sum of consecutive naturals, for example, 26653422 + ... + 26661432.

It is an arithmetic number, because the mean of its divisors is an integer number (4832325632).

Almost surely, 2^213552647697 is an apocalyptic number.

It is an amenable number.

213552647697 is a deficient number, since it is larger than the sum of its proper divisors (95716192751).

213552647697 is a wasteful number, since it uses less digits than its factorization.

213552647697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270.

The product of its digits is 19051200, while the sum is 57.

The spelling of 213552647697 in words is "two hundred thirteen billion, five hundred fifty-two million, six hundred forty-seven thousand, six hundred ninety-seven".