19826077429 has 2 divisors, whose sum is σ = 19826077430. Its totient is φ = 19826077428.

The previous prime is 19826077423. The next prime is 19826077457. The reversal of 19826077429 is 92477062891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19825203204 + 874225 = 140802^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 19826077429 - 2⁹ = 19826076917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19826077429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19826077423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9913038714 + 9913038715.

It is an arithmetic number, because the mean of its divisors is an integer number (9913038715).

Almost surely, 2^19826077429 is an apocalyptic number.

It is an amenable number.

19826077429 is a deficient number, since it is larger than the sum of its proper divisors (1).

19826077429 is an equidigital number, since it uses as much as digits as its factorization.

19826077429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The spelling of 19826077429 in words is "nineteen billion, eight hundred twenty-six million, seventy-seven thousand, four hundred twenty-nine".