6749917352641 has 4 divisors (see below), whose sum is σ = 6749933421312. Its totient is φ = 6749901283972.

The previous prime is 6749917352621. The next prime is 6749917352653. The reversal of 6749917352641 is 1462537199476.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6749917352641 is a prime.

It is a super-2 number, since 2×6749917352641² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6749917352621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7386841 + ... + 8250166.

It is an arithmetic number, because the mean of its divisors is an integer number (1687483355328).

Almost surely, 2^{6749917352641} is an apocalyptic number.

It is an amenable number.

6749917352641 is a deficient number, since it is larger than the sum of its proper divisors (16068671).

6749917352641 is a wasteful number, since it uses less digits than its factorization.

6749917352641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16068670.

The product of its digits is 68584320, while the sum is 64.

The spelling of 6749917352641 in words is "six trillion, seven hundred forty-nine billion, nine hundred seventeen million, three hundred fifty-two thousand, six hundred forty-one".