1318774609841 has 8 divisors (see below), whose sum is σ = 1420401162600. Its totient is φ = 1217174107392.

The previous prime is 1318774609793. The next prime is 1318774609871. The reversal of 1318774609841 is 1489064778131.

It can be written as a sum of positive squares in 4 ways, for example, as 468314392225 + 850460217616 = 684335^2 + 922204^2 .

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 1318774609841 - 2¹⁸ = 1318774347697 is a prime.

It is a super-3 number, since 3×1318774609841³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318774609871) 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, 6407366 + ... + 6609983.

It is an arithmetic number, because the mean of its divisors is an integer number (177550145325).

Almost surely, 2^{1318774609841} is an apocalyptic number.

It is an amenable number.

1318774609841 is a deficient number, since it is larger than the sum of its proper divisors (101626552759).

1318774609841 is a wasteful number, since it uses less digits than its factorization.

1318774609841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13025155.

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 1318774609841 in words is "one trillion, three hundred eighteen billion, seven hundred seventy-four million, six hundred nine thousand, eight hundred forty-one".