19754950799 has 2 divisors, whose sum is σ = 19754950800. Its totient is φ = 19754950798.

The previous prime is 19754950727. The next prime is 19754950811. The reversal of 19754950799 is 99705945791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19754950799 - 2¹⁶ = 19754885263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19754959799) 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, 9877475399 + 9877475400.

It is an arithmetic number, because the mean of its divisors is an integer number (9877475400).

Almost surely, 2^19754950799 is an apocalyptic number.

19754950799 is a deficient number, since it is larger than the sum of its proper divisors (1).

19754950799 is an equidigital number, since it uses as much as digits as its factorization.

19754950799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32148900, while the sum is 65.

The spelling of 19754950799 in words is "nineteen billion, seven hundred fifty-four million, nine hundred fifty thousand, seven hundred ninety-nine".