2864529665 has 16 divisors (see below), whose sum is σ = 3765145680. Its totient is φ = 2082447360.

The previous prime is 2864529643. The next prime is 2864529671. The reversal of 2864529665 is 5669254682.

It can be written as a sum of positive squares in 8 ways, for example, as 135094129 + 2729435536 = 11623^2 + 52244^2 .

It is not a de Polignac number, because 2864529665 - 2¹⁸ = 2864267521 is a prime.

It is a super-3 number, since 3×2864529665³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578576 + ... + 583505.

It is an arithmetic number, because the mean of its divisors is an integer number (235321605).

Almost surely, 2^2864529665 is an apocalyptic number.

It is an amenable number.

2864529665 is a deficient number, since it is larger than the sum of its proper divisors (900616015).

2864529665 is a wasteful number, since it uses less digits than its factorization.

2864529665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162132.

The product of its digits is 6220800, while the sum is 53.

The square root of 2864529665 is about 53521.3010398664. The cubic root of 2864529665 is about 1420.2052313629.

The spelling of 2864529665 in words is "two billion, eight hundred sixty-four million, five hundred twenty-nine thousand, six hundred sixty-five".