20726214223 has 16 divisors (see below), whose sum is σ = 24475874976. Its totient is φ = 17302487040.

The previous prime is 20726214217. The next prime is 20726214283. The reversal of 20726214223 is 32241262702.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20726214223 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 (20726214283) 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 15 ways as a sum of consecutive naturals, for example, 347890 + ... + 403087.

It is an arithmetic number, because the mean of its divisors is an integer number (1529742186).

Almost surely, 2^20726214223 is an apocalyptic number.

20726214223 is a deficient number, since it is larger than the sum of its proper divisors (3749660753).

20726214223 is a wasteful number, since it uses less digits than its factorization.

20726214223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751194.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 20726214223 its reverse (32241262702), we get a palindrome (52967476925).

The spelling of 20726214223 in words is "twenty billion, seven hundred twenty-six million, two hundred fourteen thousand, two hundred twenty-three".