1345104021875 has 24 divisors (see below), whose sum is σ = 1696985667216. Its totient is φ = 1066026100000.

The previous prime is 1345104021871. The next prime is 1345104021887. The reversal of 1345104021875 is 5781204015431.

It is not a de Polignac number, because 1345104021875 - 2² = 1345104021871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345104021871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1676996 + ... + 2345745.

It is an arithmetic number, because the mean of its divisors is an integer number (70707736134).

Almost surely, 2^{1345104021875} is an apocalyptic number.

1345104021875 is a deficient number, since it is larger than the sum of its proper divisors (351881645341).

1345104021875 is an frugal number, since it uses more digits than its factorization.

1345104021875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022873 (or 4022853 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 1345104021875 in words is "one trillion, three hundred forty-five billion, one hundred four million, twenty-one thousand, eight hundred seventy-five".