1019416670989 has 2 divisors, whose sum is σ = 1019416670990. Its totient is φ = 1019416670988.

The previous prime is 1019416670969. The next prime is 1019416671023. The reversal of 1019416670989 is 9890766149101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 812080334025 + 207336336964 = 901155^2 + 455342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019416670989 - 2⁵ = 1019416670957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1019416670939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509708335494 + 509708335495.

It is an arithmetic number, because the mean of its divisors is an integer number (509708335495).

Almost surely, 2^{1019416670989} is an apocalyptic number.

It is an amenable number.

1019416670989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019416670989 is an equidigital number, since it uses as much as digits as its factorization.

1019416670989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5878656, while the sum is 61.

The spelling of 1019416670989 in words is "one trillion, nineteen billion, four hundred sixteen million, six hundred seventy thousand, nine hundred eighty-nine".