1344636503401 has 4 divisors (see below), whose sum is σ = 1348093152900. Its totient is φ = 1341179853904.

The previous prime is 1344636503369. The next prime is 1344636503461. The reversal of 1344636503401 is 1043056364431.

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 753859799001 + 590776704400 = 868251^2 + 768620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344636503401 - 2⁵ = 1344636503369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1344636503461) 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, 1728324166 + ... + 1728324943.

It is an arithmetic number, because the mean of its divisors is an integer number (337023288225).

Almost surely, 2^{1344636503401} is an apocalyptic number.

It is an amenable number.

1344636503401 is a deficient number, since it is larger than the sum of its proper divisors (3456649499).

1344636503401 is an equidigital number, since it uses as much as digits as its factorization.

1344636503401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456649498.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 1344636503401 in words is "one trillion, three hundred forty-four billion, six hundred thirty-six million, five hundred three thousand, four hundred one".