6801248629729 has 4 divisors (see below), whose sum is σ = 6801256891584. Its totient is φ = 6801240367876.

The previous prime is 6801248629699. The next prime is 6801248629741. The reversal of 6801248629729 is 9279268421086.

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 not a de Polignac number, because 6801248629729 - 2¹⁷ = 6801248498657 is a prime.

It is a super-2 number, since 2×6801248629729² (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 (6801248629429) 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, 2739997 + ... + 4594570.

It is an arithmetic number, because the mean of its divisors is an integer number (1700314222896).

Almost surely, 2^{6801248629729} is an apocalyptic number.

It is an amenable number.

6801248629729 is a deficient number, since it is larger than the sum of its proper divisors (8261855).

6801248629729 is an equidigital number, since it uses as much as digits as its factorization.

6801248629729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8261854.

The product of its (nonzero) digits is 41803776, while the sum is 64.

The spelling of 6801248629729 in words is "six trillion, eight hundred one billion, two hundred forty-eight million, six hundred twenty-nine thousand, seven hundred twenty-nine".