6801720437823 has 8 divisors (see below), whose sum is σ = 9068998075008. Its totient is φ = 4534461546264.

The previous prime is 6801720437801. The next prime is 6801720437839. The reversal of 6801720437823 is 3287340271086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6801720437823 - 2²⁴ = 6801703660607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6801720437843) 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 7 ways as a sum of consecutive naturals, for example, 3816715 + ... + 5307612.

It is an arithmetic number, because the mean of its divisors is an integer number (1133624759376).

Almost surely, 2^{6801720437823} is an apocalyptic number.

6801720437823 is a deficient number, since it is larger than the sum of its proper divisors (2267277637185).

6801720437823 is a wasteful number, since it uses less digits than its factorization.

6801720437823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9372813.

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 6801720437823 in words is "six trillion, eight hundred one billion, seven hundred twenty million, four hundred thirty-seven thousand, eight hundred twenty-three".