1049326665985 has 16 divisors (see below), whose sum is σ = 1357592216400. Its totient is φ = 774007787520.

The previous prime is 1049326665979. The next prime is 1049326665991. The reversal of 1049326665985 is 5895666239401.

It is an interprime number because it is at equal distance from previous prime (1049326665979) and next prime (1049326665991).

It can be written as a sum of positive squares in 8 ways, for example, as 26540319744 + 1022786346241 = 162912^2 + 1011329^2 .

It is not a de Polignac number, because 1049326665985 - 2³ = 1049326665977 is a prime.

It is a super-2 number, since 2×1049326665985² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9104760 + ... + 9219289.

It is an arithmetic number, because the mean of its divisors is an integer number (84849513525).

Almost surely, 2^{1049326665985} is an apocalyptic number.

It is an amenable number.

1049326665985 is a deficient number, since it is larger than the sum of its proper divisors (308265550415).

1049326665985 is a wasteful number, since it uses less digits than its factorization.

1049326665985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18324948.

The product of its (nonzero) digits is 83980800, while the sum is 64.

The spelling of 1049326665985 in words is "one trillion, forty-nine billion, three hundred twenty-six million, six hundred sixty-five thousand, nine hundred eighty-five".