1544342464649 has 16 divisors (see below), whose sum is σ = 1605178736640. Its totient is φ = 1484998315920.

The previous prime is 1544342464619. The next prime is 1544342464757. The reversal of 1544342464649 is 9464642434451.

It is a cyclic number.

It is not a de Polignac number, because 1544342464649 - 2²⁴ = 1544325687433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1544342464594 and 1544342464603.

It is not an unprimeable number, because it can be changed into a prime (1544342464619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919439 + ... + 1983444.

It is an arithmetic number, because the mean of its divisors is an integer number (100323671040).

Almost surely, 2^{1544342464649} is an apocalyptic number.

It is an amenable number.

1544342464649 is a deficient number, since it is larger than the sum of its proper divisors (60836271991).

1544342464649 is a wasteful number, since it uses less digits than its factorization.

1544342464649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903140.

The product of its digits is 39813120, while the sum is 56.

The spelling of 1544342464649 in words is "one trillion, five hundred forty-four billion, three hundred forty-two million, four hundred sixty-four thousand, six hundred forty-nine".