1325673071645 has 32 divisors (see below), whose sum is σ = 1782640161792. Its totient is φ = 940051636992.

The previous prime is 1325673071627. The next prime is 1325673071687. The reversal of 1325673071645 is 5461703765231.

It is not a de Polignac number, because 1325673071645 - 2²⁰ = 1325672023069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1325673071593 and 1325673071602.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3931817 + ... + 4255646.

It is an arithmetic number, because the mean of its divisors is an integer number (55707505056).

Almost surely, 2^{1325673071645} is an apocalyptic number.

It is an amenable number.

1325673071645 is a deficient number, since it is larger than the sum of its proper divisors (456967090147).

1325673071645 is a wasteful number, since it uses less digits than its factorization.

1325673071645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187581.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 1325673071645 in words is "one trillion, three hundred twenty-five billion, six hundred seventy-three million, seventy-one thousand, six hundred forty-five".