1288869295 has 12 divisors (see below), whose sum is σ = 1799156664. Its totient is φ = 883795920.

The previous prime is 1288869293. The next prime is 1288869311. The reversal of 1288869295 is 5929688821.

It is not a de Polignac number, because 1288869295 - 2¹ = 1288869293 is a prime.

It is a super-2 number, since 2×1288869295² = 3322368119187594050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288869293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2630101 + ... + 2630590.

It is an arithmetic number, because the mean of its divisors is an integer number (149929722).

Almost surely, 2^1288869295 is an apocalyptic number.

1288869295 is a deficient number, since it is larger than the sum of its proper divisors (510287369).

1288869295 is an equidigital number, since it uses as much as digits as its factorization.

1288869295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260710 (or 5260703 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 58.

The square root of 1288869295 is about 35900.8258261561. The cubic root of 1288869295 is about 1088.2690859519.

The spelling of 1288869295 in words is "one billion, two hundred eighty-eight million, eight hundred sixty-nine thousand, two hundred ninety-five".