20468118527 has 4 divisors (see below), whose sum is σ = 20605488600. Its totient is φ = 20330748456.

The previous prime is 20468118509. The next prime is 20468118529. The reversal of 20468118527 is 72581186402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72581186402 = 2 ⋅36290593201.

It is a cyclic number.

It is not a de Polignac number, because 20468118527 - 2¹⁶ = 20468052991 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 (20468118529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68684813 + ... + 68685110.

It is an arithmetic number, because the mean of its divisors is an integer number (5151372150).

Almost surely, 2^20468118527 is an apocalyptic number.

20468118527 is a deficient number, since it is larger than the sum of its proper divisors (137370073).

20468118527 is a wasteful number, since it uses less digits than its factorization.

20468118527 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137370072.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 20468118527 in words is "twenty billion, four hundred sixty-eight million, one hundred eighteen thousand, five hundred twenty-seven".