20452523671 has 2 divisors, whose sum is σ = 20452523672. Its totient is φ = 20452523670.

The previous prime is 20452523639. The next prime is 20452523701. The reversal of 20452523671 is 17632525402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20452523671 - 2⁵ = 20452523639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20452523671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20452523071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226261835 + 10226261836.

It is an arithmetic number, because the mean of its divisors is an integer number (10226261836).

Almost surely, 2^20452523671 is an apocalyptic number.

20452523671 is a deficient number, since it is larger than the sum of its proper divisors (1).

20452523671 is an equidigital number, since it uses as much as digits as its factorization.

20452523671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 20452523671 in words is "twenty billion, four hundred fifty-two million, five hundred twenty-three thousand, six hundred seventy-one".