1059464665809 has 135 divisors (see below), whose sum is σ = 1794287441793. Its totient is φ = 622522454400.

The previous prime is 1059464665757. The next prime is 1059464665843. The reversal of 1059464665809 is 9085664649501.

The square root of 1059464665809 is 1029303.

It is a perfect power (a square), and thus also a powerful number.

1059464665809 is a `hidden beast` number, since 1 + 0 + 5 + 9 + 4 + 6 + 46 + 6 + 580 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 372508812225 + 686955853584 = 610335^2 + 828828^2 .

It is not a de Polignac number, because 1059464665809 - 2¹³ = 1059464657617 is a prime.

It is a super-2 number, since 2×1059464665809² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1059464665009) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 3770336749 + ... + 3770337029.

Almost surely, 2^{1059464665809} is an apocalyptic number.

1059464665809 is the 1029303-rd square number.

1059464665809 is the 514652-nd centered octagonal number.

It is an amenable number.

1059464665809 is a deficient number, since it is larger than the sum of its proper divisors (734822775984).

1059464665809 is an frugal number, since it uses more digits than its factorization.

1059464665809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 55987200, while the sum is 63.

The spelling of 1059464665809 in words is "one trillion, fifty-nine billion, four hundred sixty-four million, six hundred sixty-five thousand, eight hundred nine".