1338229949753 has 8 divisors (see below), whose sum is σ = 1431557085672. Its totient is φ = 1246525894656.

The previous prime is 1338229949741. The next prime is 1338229949759. The reversal of 1338229949753 is 3579499228331.

It can be written as a sum of positive squares in 4 ways, for example, as 793804375849 + 544425573904 = 890957^2 + 737852^2 .

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 1338229949753 - 2¹⁶ = 1338229884217 is a prime.

It is a super-2 number, since 2×1338229949753² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1338229949753.

It is not an unprimeable number, because it can be changed into a prime (1338229949759) 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, 405768500 + ... + 405771797.

It is an arithmetic number, because the mean of its divisors is an integer number (178944635709).

Almost surely, 2^{1338229949753} is an apocalyptic number.

It is an amenable number.

1338229949753 is a deficient number, since it is larger than the sum of its proper divisors (93327135919).

1338229949753 is an equidigital number, since it uses as much as digits as its factorization.

1338229949753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811540411.

The product of its digits is 88179840, while the sum is 65.

The spelling of 1338229949753 in words is "one trillion, three hundred thirty-eight billion, two hundred twenty-nine million, nine hundred forty-nine thousand, seven hundred fifty-three".