1326375687625 has 8 divisors (see below), whose sum is σ = 1655316858312. Its totient is φ = 1061100550000.

The previous prime is 1326375687599. The next prime is 1326375687649. The reversal of 1326375687625 is 5267865736231.

It can be written as a sum of positive squares in 4 ways, for example, as 397949012224 + 928426675401 = 630832^2 + 963549^2 .

It is not a de Polignac number, because 1326375687625 - 2²⁷ = 1326241469897 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, 5305502626 + ... + 5305502875.

It is an arithmetic number, because the mean of its divisors is an integer number (206914607289).

Almost surely, 2^{1326375687625} is an apocalyptic number.

It is an amenable number.

1326375687625 is a deficient number, since it is larger than the sum of its proper divisors (328941170687).

1326375687625 is an equidigital number, since it uses as much as digits as its factorization.

1326375687625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10611005516 (or 10611005506 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 61.

The spelling of 1326375687625 in words is "one trillion, three hundred twenty-six billion, three hundred seventy-five million, six hundred eighty-seven thousand, six hundred twenty-five".