13289504950618 has 8 divisors (see below), whose sum is σ = 21467661843348. Its totient is φ = 6133617669504.

The previous prime is 13289504950537. The next prime is 13289504950721. The reversal of 13289504950618 is 81605940598231.

It can be written as a sum of positive squares in 2 ways, for example, as 10696255283169 + 2593249667449 = 3270513^2 + 1610357^2 .

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

It is a super-2 number, since 2×13289504950618² (a number of 27 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 255567402871 + ... + 255567402922.

Almost surely, 2^{13289504950618} is an apocalyptic number.

13289504950618 is a deficient number, since it is larger than the sum of its proper divisors (8178156892730).

13289504950618 is a wasteful number, since it uses less digits than its factorization.

13289504950618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511134805808.

The product of its (nonzero) digits is 18662400, while the sum is 61.

The spelling of 13289504950618 in words is "thirteen trillion, two hundred eighty-nine billion, five hundred four million, nine hundred fifty thousand, six hundred eighteen".