1349270435657 has 8 divisors (see below), whose sum is σ = 1354518006336. Its totient is φ = 1344023753872.

The previous prime is 1349270435651. The next prime is 1349270435659. The reversal of 1349270435657 is 7565340729431.

It is a happy number.

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 1349270435657 - 2⁴ = 1349270435641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1349270435651) 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, 2904863 + ... + 3337179.

It is an arithmetic number, because the mean of its divisors is an integer number (169314750792).

Almost surely, 2^{1349270435657} is an apocalyptic number.

It is an amenable number.

1349270435657 is a deficient number, since it is larger than the sum of its proper divisors (5247570679).

1349270435657 is a wasteful number, since it uses less digits than its factorization.

1349270435657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444447.

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 1349270435657 in words is "one trillion, three hundred forty-nine billion, two hundred seventy million, four hundred thirty-five thousand, six hundred fifty-seven".