20475745363 has 2 divisors, whose sum is σ = 20475745364. Its totient is φ = 20475745362.

The previous prime is 20475745337. The next prime is 20475745403. The reversal of 20475745363 is 36354757402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20475745363 - 2²¹ = 20473648211 is a prime.

It is a super-2 number, since 2×20475745363² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20475745063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10237872681 + 10237872682.

It is an arithmetic number, because the mean of its divisors is an integer number (10237872682).

Almost surely, 2^20475745363 is an apocalyptic number.

20475745363 is a deficient number, since it is larger than the sum of its proper divisors (1).

20475745363 is an equidigital number, since it uses as much as digits as its factorization.

20475745363 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 46.

The spelling of 20475745363 in words is "twenty billion, four hundred seventy-five million, seven hundred forty-five thousand, three hundred sixty-three".