20548683629 has 2 divisors, whose sum is σ = 20548683630. Its totient is φ = 20548683628.

The previous prime is 20548683593. The next prime is 20548683677. The reversal of 20548683629 is 92638684502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20128515625 + 420168004 = 141875^2 + 20498^2 .

It is a cyclic number.

It is not a de Polignac number, because 20548683629 - 2⁸ = 20548683373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20548683329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10274341814 + 10274341815.

It is an arithmetic number, because the mean of its divisors is an integer number (10274341815).

Almost surely, 2^20548683629 is an apocalyptic number.

It is an amenable number.

20548683629 is a deficient number, since it is larger than the sum of its proper divisors (1).

20548683629 is an equidigital number, since it uses as much as digits as its factorization.

20548683629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 20548683629 in words is "twenty billion, five hundred forty-eight million, six hundred eighty-three thousand, six hundred twenty-nine".