20026620453 has 8 divisors (see below), whose sum is σ = 30516755008. Its totient is φ = 11443783104.

The previous prime is 20026620443. The next prime is 20026620457. The reversal of 20026620453 is 35402662002.

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

It is not a de Polignac number, because 20026620453 - 2⁸ = 20026620197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20026620453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026620457) 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 7 ways as a sum of consecutive naturals, for example, 476824276 + ... + 476824317.

It is an arithmetic number, because the mean of its divisors is an integer number (3814594376).

Almost surely, 2^20026620453 is an apocalyptic number.

It is an amenable number.

20026620453 is a deficient number, since it is larger than the sum of its proper divisors (10490134555).

20026620453 is an equidigital number, since it uses as much as digits as its factorization.

20026620453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953648603.

The product of its (nonzero) digits is 17280, while the sum is 30.

The spelling of 20026620453 in words is "twenty billion, twenty-six million, six hundred twenty thousand, four hundred fifty-three".