1288795223629 has 4 divisors (see below), whose sum is σ = 1292688865120. Its totient is φ = 1284901582140.

The previous prime is 1288795223623. The next prime is 1288795223641. The reversal of 1288795223629 is 9263225978821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1288795223629 - 2¹⁵ = 1288795190861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288795223623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946820249 + ... + 1946820910.

It is an arithmetic number, because the mean of its divisors is an integer number (323172216280).

Almost surely, 2^{1288795223629} is an apocalyptic number.

It is an amenable number.

1288795223629 is a deficient number, since it is larger than the sum of its proper divisors (3893641491).

1288795223629 is an equidigital number, since it uses as much as digits as its factorization.

1288795223629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3893641490.

The product of its digits is 52254720, while the sum is 64.

The spelling of 1288795223629 in words is "one trillion, two hundred eighty-eight billion, seven hundred ninety-five million, two hundred twenty-three thousand, six hundred twenty-nine".