1361221752617 has 8 divisors (see below), whose sum is σ = 1445096512800. Its totient is φ = 1277769536064.

The previous prime is 1361221752607. The next prime is 1361221752619. The reversal of 1361221752617 is 7162571221631.

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 1361221752617 - 2¹² = 1361221748521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361221752619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105629267 + ... + 105642152.

It is an arithmetic number, because the mean of its divisors is an integer number (180637064100).

Almost surely, 2^{1361221752617} is an apocalyptic number.

1361221752617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1361221752617 is a deficient number, since it is larger than the sum of its proper divisors (83874760183).

1361221752617 is a wasteful number, since it uses less digits than its factorization.

1361221752617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211271815.

The product of its digits is 211680, while the sum is 44.

The spelling of 1361221752617 in words is "one trillion, three hundred sixty-one billion, two hundred twenty-one million, seven hundred fifty-two thousand, six hundred seventeen".