6493372433649 has 6 divisors (see below), whose sum is σ = 9379315737506. Its totient is φ = 4328914955760.

The previous prime is 6493372433641. The next prime is 6493372433651. The reversal of 6493372433649 is 9463342733946.

6493372433649 is a `hidden beast` number, since 6 + 4 + 93 + 3 + 72 + 433 + 6 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4154491598049 + 2338880835600 = 2038257^2 + 1529340^2 .

It is not a de Polignac number, because 6493372433649 - 2³ = 6493372433641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6493372433641) 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 5 ways as a sum of consecutive naturals, for example, 360742912972 + ... + 360742912989.

Almost surely, 2^{6493372433649} is an apocalyptic number.

It is an amenable number.

6493372433649 is a deficient number, since it is larger than the sum of its proper divisors (2885943303857).

6493372433649 is a wasteful number, since it uses less digits than its factorization.

6493372433649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721485825967 (or 721485825964 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 63.

The spelling of 6493372433649 in words is "six trillion, four hundred ninety-three billion, three hundred seventy-two million, four hundred thirty-three thousand, six hundred forty-nine".