20472063511 has 2 divisors, whose sum is σ = 20472063512. Its totient is φ = 20472063510.

The previous prime is 20472063503. The next prime is 20472063553. The reversal of 20472063511 is 11536027402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20472063511 - 2³ = 20472063503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20472013511) 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, 10236031755 + 10236031756.

It is an arithmetic number, because the mean of its divisors is an integer number (10236031756).

Almost surely, 2^20472063511 is an apocalyptic number.

20472063511 is a deficient number, since it is larger than the sum of its proper divisors (1).

20472063511 is an equidigital number, since it uses as much as digits as its factorization.

20472063511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The spelling of 20472063511 in words is "twenty billion, four hundred seventy-two million, sixty-three thousand, five hundred eleven".