1305604624645 has 8 divisors (see below), whose sum is σ = 1566790684704. Its totient is φ = 1044440276304.

The previous prime is 1305604624619. The next prime is 1305604624657. The reversal of 1305604624645 is 5464264065031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305604624645 - 2²⁵ = 1305571070213 is a prime.

It is a super-2 number, since 2×1305604624645² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305604624595 and 1305604624604.

It is a congruent 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, 5295339 + ... + 5536408.

It is an arithmetic number, because the mean of its divisors is an integer number (195848835588).

Almost surely, 2^{1305604624645} is an apocalyptic number.

It is an amenable number.

1305604624645 is a deficient number, since it is larger than the sum of its proper divisors (261186060059).

1305604624645 is a wasteful number, since it uses less digits than its factorization.

1305604624645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10855859.

The product of its (nonzero) digits is 2073600, while the sum is 46.

Adding to 1305604624645 its reverse (5464264065031), we get a palindrome (6769868689676).

The spelling of 1305604624645 in words is "one trillion, three hundred five billion, six hundred four million, six hundred twenty-four thousand, six hundred forty-five".