6783421401726 has 16 divisors (see below), whose sum is σ = 13579751324928. Its totient is φ = 2258989047000.

The previous prime is 6783421401709. The next prime is 6783421401769. The reversal of 6783421401726 is 6271041243876.

It is a congruent number.

It is an unprimeable number.

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, 537848230 + ... + 537860841.

It is an arithmetic number, because the mean of its divisors is an integer number (848734457808).

Almost surely, 2^{6783421401726} is an apocalyptic number.

6783421401726 is an abundant number, since it is smaller than the sum of its proper divisors (6796329923202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6783421401726 is a wasteful number, since it uses less digits than its factorization.

6783421401726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075710127.

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

The spelling of 6783421401726 in words is "six trillion, seven hundred eighty-three billion, four hundred twenty-one million, four hundred one thousand, seven hundred twenty-six".