1345804690625 has 12 divisors (see below), whose sum is σ = 1682148202812. Its totient is φ = 1076643750000.

The previous prime is 1345804690579. The next prime is 1345804690631. The reversal of 1345804690625 is 5260964085431.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1087346332081 + 258458358544 = 1042759^2 + 508388^2 .

It is not a de Polignac number, because 1345804690625 - 2¹² = 1345804686529 is a prime.

It is a super-2 number, since 2×1345804690625² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 215325626 + ... + 215331875.

It is an arithmetic number, because the mean of its divisors is an integer number (140179016901).

Almost surely, 2^{1345804690625} is an apocalyptic number.

It is an amenable number.

1345804690625 is a deficient number, since it is larger than the sum of its proper divisors (336343512187).

1345804690625 is an frugal number, since it uses more digits than its factorization.

1345804690625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430657526 (or 430657506 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 1345804690625 in words is "one trillion, three hundred forty-five billion, eight hundred four million, six hundred ninety thousand, six hundred twenty-five".