1288234839625 has 8 divisors (see below), whose sum is σ = 1607717080008. Its totient is φ = 1030587871600.

The previous prime is 1288234839539. The next prime is 1288234839691. The reversal of 1288234839625 is 5269384328821.

It can be written as a sum of positive squares in 4 ways, for example, as 11034241936 + 1277200597689 = 105044^2 + 1130133^2 .

It is not a de Polignac number, because 1288234839625 - 2⁷ = 1288234839497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5152939234 + ... + 5152939483.

It is an arithmetic number, because the mean of its divisors is an integer number (200964635001).

Almost surely, 2^{1288234839625} is an apocalyptic number.

It is an amenable number.

1288234839625 is a deficient number, since it is larger than the sum of its proper divisors (319482240383).

1288234839625 is an equidigital number, since it uses as much as digits as its factorization.

1288234839625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10305878732 (or 10305878722 counting only the distinct ones).

The product of its digits is 39813120, while the sum is 61.

The spelling of 1288234839625 in words is "one trillion, two hundred eighty-eight billion, two hundred thirty-four million, eight hundred thirty-nine thousand, six hundred twenty-five".