1019469857089 has 2 divisors, whose sum is σ = 1019469857090. Its totient is φ = 1019469857088.

The previous prime is 1019469857071. The next prime is 1019469857117. The reversal of 1019469857089 is 9807589649101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 764225640000 + 255244217089 = 874200^2 + 505217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019469857089 - 2¹⁷ = 1019469726017 is a prime.

It is not a weakly prime, because it can be changed into another prime (1019469857069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509734928544 + 509734928545.

It is an arithmetic number, because the mean of its divisors is an integer number (509734928545).

Almost surely, 2^{1019469857089} is an apocalyptic number.

It is an amenable number.

1019469857089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019469857089 is an equidigital number, since it uses as much as digits as its factorization.

1019469857089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39191040, while the sum is 67.

The spelling of 1019469857089 in words is "one trillion, nineteen billion, four hundred sixty-nine million, eight hundred fifty-seven thousand, eighty-nine".