20627986844651 has 8 divisors (see below), whose sum is σ = 20925123084000. Its totient is φ = 20331033972480.

The previous prime is 20627986844639. The next prime is 20627986844669. The reversal of 20627986844651 is 15644868972602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20627986844651 - 2¹⁸ = 20627986582507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20627986844351) 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 7 ways as a sum of consecutive naturals, for example, 45615176 + ... + 46065173.

It is an arithmetic number, because the mean of its divisors is an integer number (2615640385500).

Almost surely, 2^{20627986844651} is an apocalyptic number.

20627986844651 is a deficient number, since it is larger than the sum of its proper divisors (297136239349).

20627986844651 is an equidigital number, since it uses as much as digits as its factorization.

20627986844651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91683589.

The product of its (nonzero) digits is 278691840, while the sum is 68.

The spelling of 20627986844651 in words is "twenty trillion, six hundred twenty-seven billion, nine hundred eighty-six million, eight hundred forty-four thousand, six hundred fifty-one".