1019469791797 has 2 divisors, whose sum is σ = 1019469791798. Its totient is φ = 1019469791796.

The previous prime is 1019469791737. The next prime is 1019469791801. The reversal of 1019469791797 is 7971979649101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 582487977681 + 436981814116 = 763209^2 + 661046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1019469791797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1019469791707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509734895898 + 509734895899.

It is an arithmetic number, because the mean of its divisors is an integer number (509734895899).

Almost surely, 2^{1019469791797} is an apocalyptic number.

It is an amenable number.

1019469791797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019469791797 is an equidigital number, since it uses as much as digits as its factorization.

1019469791797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54010152, while the sum is 70.

The spelling of 1019469791797 in words is "one trillion, nineteen billion, four hundred sixty-nine million, seven hundred ninety-one thousand, seven hundred ninety-seven".