20627056317 has 24 divisors (see below), whose sum is σ = 33676831200. Its totient is φ = 11166525216.

The previous prime is 20627056313. The next prime is 20627056319. The reversal of 20627056317 is 71365072602.

It is not a de Polignac number, because 20627056317 - 2² = 20627056313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20627056313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3689842 + ... + 3695427.

It is an arithmetic number, because the mean of its divisors is an integer number (1403201300).

Almost surely, 2^20627056317 is an apocalyptic number.

It is an amenable number.

20627056317 is a deficient number, since it is larger than the sum of its proper divisors (13049774883).

20627056317 is a wasteful number, since it uses less digits than its factorization.

20627056317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385305 (or 7385298 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 20627056317 in words is "twenty billion, six hundred twenty-seven million, fifty-six thousand, three hundred seventeen".