20472763319 has 2 divisors, whose sum is σ = 20472763320. Its totient is φ = 20472763318.

The previous prime is 20472763301. The next prime is 20472763387. The reversal of 20472763319 is 91336727402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20472763319 - 2²⁰ = 20471714743 is a prime.

It is a super-2 number, since 2×20472763319² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20472763319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20472763219) 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, 10236381659 + 10236381660.

It is an arithmetic number, because the mean of its divisors is an integer number (10236381660).

Almost surely, 2^20472763319 is an apocalyptic number.

20472763319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20472763319 is an equidigital number, since it uses as much as digits as its factorization.

20472763319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 44.

The spelling of 20472763319 in words is "twenty billion, four hundred seventy-two million, seven hundred sixty-three thousand, three hundred nineteen".