1313620536626 has 4 divisors (see below), whose sum is σ = 1970430804942. Its totient is φ = 656810268312.

The previous prime is 1313620536619. The next prime is 1313620536707. The reversal of 1313620536626 is 6266350263131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1015662855601 + 297957681025 = 1007801^2 + 545855^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328405134155 + ... + 328405134158.

Almost surely, 2^{1313620536626} is an apocalyptic number.

1313620536626 is a deficient number, since it is larger than the sum of its proper divisors (656810268316).

1313620536626 is an equidigital number, since it uses as much as digits as its factorization.

1313620536626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656810268315.

The product of its (nonzero) digits is 699840, while the sum is 44.

Adding to 1313620536626 its reverse (6266350263131), we get a palindrome (7579970799757).

The spelling of 1313620536626 in words is "one trillion, three hundred thirteen billion, six hundred twenty million, five hundred thirty-six thousand, six hundred twenty-six".