1391349210913 has 4 divisors (see below), whose sum is σ = 1439326769940. Its totient is φ = 1343371651888.

The previous prime is 1391349210869. The next prime is 1391349210929. The reversal of 1391349210913 is 3190129431931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 705453847569 + 685895363344 = 839913^2 + 828188^2 .

It is a cyclic number.

It is not a de Polignac number, because 1391349210913 - 2¹³ = 1391349202721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1391349210943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23988779470 + ... + 23988779527.

It is an arithmetic number, because the mean of its divisors is an integer number (359831692485).

Almost surely, 2^{1391349210913} is an apocalyptic number.

It is an amenable number.

1391349210913 is a deficient number, since it is larger than the sum of its proper divisors (47977559027).

1391349210913 is an equidigital number, since it uses as much as digits as its factorization.

1391349210913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47977559026.

The product of its (nonzero) digits is 157464, while the sum is 46.

The spelling of 1391349210913 in words is "one trillion, three hundred ninety-one billion, three hundred forty-nine million, two hundred ten thousand, nine hundred thirteen".