217627239423 has 16 divisors (see below), whose sum is σ = 335169225216. Its totient is φ = 124136749440.

The previous prime is 217627239371. The next prime is 217627239449. The reversal of 217627239423 is 324932726712.

It is not a de Polignac number, because 217627239423 - 2⁶ = 217627239359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217627239463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193963111 + ... + 193964232.

It is an arithmetic number, because the mean of its divisors is an integer number (20948076576).

Almost surely, 2^217627239423 is an apocalyptic number.

217627239423 is a deficient number, since it is larger than the sum of its proper divisors (117541985793).

217627239423 is a wasteful number, since it uses less digits than its factorization.

217627239423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387927374.

The product of its digits is 1524096, while the sum is 48.

The spelling of 217627239423 in words is "two hundred seventeen billion, six hundred twenty-seven million, two hundred thirty-nine thousand, four hundred twenty-three".