1381361688601 has 16 divisors (see below), whose sum is σ = 1455215735808. Its totient is φ = 1309578379200.

The previous prime is 1381361688593. The next prime is 1381361688673. The reversal of 1381361688601 is 1068861631831.

It is a cyclic number.

It is not a de Polignac number, because 1381361688601 - 2³ = 1381361688593 is a prime.

It is a super-2 number, since 2×1381361688601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381361688001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1653190 + ... + 2344303.

It is an arithmetic number, because the mean of its divisors is an integer number (90950983488).

Almost surely, 2^{1381361688601} is an apocalyptic number.

It is an amenable number.

1381361688601 is a deficient number, since it is larger than the sum of its proper divisors (73854047207).

1381361688601 is a wasteful number, since it uses less digits than its factorization.

1381361688601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3997752.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 1381361688601 in words is "one trillion, three hundred eighty-one billion, three hundred sixty-one million, six hundred eighty-eight thousand, six hundred one".