1346421651613 has 4 divisors (see below), whose sum is σ = 1347252264988. Its totient is φ = 1345591038240.

The previous prime is 1346421651611. The next prime is 1346421651643. The reversal of 1346421651613 is 3161561246431.

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 890346990724 + 456074660889 = 943582^2 + 675333^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346421651613 - 2¹ = 1346421651611 is a prime.

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 1346421651613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1346421651611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415304256 + ... + 415307497.

It is an arithmetic number, because the mean of its divisors is an integer number (336813066247).

Almost surely, 2^{1346421651613} is an apocalyptic number.

It is an amenable number.

1346421651613 is a deficient number, since it is larger than the sum of its proper divisors (830613375).

1346421651613 is an equidigital number, since it uses as much as digits as its factorization.

1346421651613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830613374.

The product of its digits is 311040, while the sum is 43.

The spelling of 1346421651613 in words is "one trillion, three hundred forty-six billion, four hundred twenty-one million, six hundred fifty-one thousand, six hundred thirteen".