1361205552647 has 8 divisors (see below), whose sum is σ = 1418247332352. Its totient is φ = 1304984518200.

The previous prime is 1361205552631. The next prime is 1361205552653. The reversal of 1361205552647 is 7462555021631.

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 1361205552647 - 2⁴ = 1361205552631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361205552667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205182929 + ... + 205189562.

It is an arithmetic number, because the mean of its divisors is an integer number (177280916544).

Almost surely, 2^{1361205552647} is an apocalyptic number.

1361205552647 is a deficient number, since it is larger than the sum of its proper divisors (57041779705).

1361205552647 is a wasteful number, since it uses less digits than its factorization.

1361205552647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410372629.

The product of its (nonzero) digits is 1512000, while the sum is 47.

The spelling of 1361205552647 in words is "one trillion, three hundred sixty-one billion, two hundred five million, five hundred fifty-two thousand, six hundred forty-seven".