20272349453 has 2 divisors, whose sum is σ = 20272349454. Its totient is φ = 20272349452.

The previous prime is 20272349411. The next prime is 20272349561. The reversal of 20272349453 is 35494327202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20237338564 + 35010889 = 142258^2 + 5917^2 .

It is a cyclic number.

It is not a de Polignac number, because 20272349453 - 2⁸ = 20272349197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20272349453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20272319453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10136174726 + 10136174727.

It is an arithmetic number, because the mean of its divisors is an integer number (10136174727).

Almost surely, 2^20272349453 is an apocalyptic number.

It is an amenable number.

20272349453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20272349453 is an equidigital number, since it uses as much as digits as its factorization.

20272349453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 20272349453 in words is "twenty billion, two hundred seventy-two million, three hundred forty-nine thousand, four hundred fifty-three".