1381649488129 has 8 divisors (see below), whose sum is σ = 1384819362432. Its totient is φ = 1378479844560.

The previous prime is 1381649488097. The next prime is 1381649488207. The reversal of 1381649488129 is 9218849461831.

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 1381649488129 - 2⁵ = 1381649488097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1381649488829) 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, 19426824 + ... + 19497814.

It is an arithmetic number, because the mean of its divisors is an integer number (173102420304).

Almost surely, 2^{1381649488129} is an apocalyptic number.

It is an amenable number.

1381649488129 is a deficient number, since it is larger than the sum of its proper divisors (3169874303).

1381649488129 is an equidigital number, since it uses as much as digits as its factorization.

1381649488129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115367.

The product of its digits is 23887872, while the sum is 64.

The spelling of 1381649488129 in words is "one trillion, three hundred eighty-one billion, six hundred forty-nine million, four hundred eighty-eight thousand, one hundred twenty-nine".