1347201346577 has 4 divisors (see below), whose sum is σ = 1347205013940. Its totient is φ = 1347197679216.

The previous prime is 1347201346573. The next prime is 1347201346583. The reversal of 1347201346577 is 7756431027431.

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 1198501647121 + 148699699456 = 1094761^2 + 385616^2 .

It is a cyclic number.

It is not a de Polignac number, because 1347201346577 - 2² = 1347201346573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1347201346573) 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, 1212518 + ... + 2040735.

It is an arithmetic number, because the mean of its divisors is an integer number (336801253485).

Almost surely, 2^{1347201346577} is an apocalyptic number.

It is an amenable number.

1347201346577 is a deficient number, since it is larger than the sum of its proper divisors (3667363).

1347201346577 is an equidigital number, since it uses as much as digits as its factorization.

1347201346577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667362.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 1347201346577 in words is "one trillion, three hundred forty-seven billion, two hundred one million, three hundred forty-six thousand, five hundred seventy-seven".