1353404516447 has 16 divisors (see below), whose sum is σ = 1369664445600. Its totient is φ = 1337223078912.

The previous prime is 1353404516437. The next prime is 1353404516491. The reversal of 1353404516447 is 7446154043531.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1353404516447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1353404516437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113754203 + ... + 113766099.

It is an arithmetic number, because the mean of its divisors is an integer number (85604027850).

Almost surely, 2^{1353404516447} is an apocalyptic number.

1353404516447 is a deficient number, since it is larger than the sum of its proper divisors (16259929153).

1353404516447 is a wasteful number, since it uses less digits than its factorization.

1353404516447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15082.

The product of its (nonzero) digits is 2419200, while the sum is 47.

Adding to 1353404516447 its reverse (7446154043531), we get a palindrome (8799558559978).

The spelling of 1353404516447 in words is "one trillion, three hundred fifty-three billion, four hundred four million, five hundred sixteen thousand, four hundred forty-seven".