6783421401727 has 16 divisors (see below), whose sum is σ = 7039334006784. Its totient is φ = 6529831308000.

The previous prime is 6783421401709. The next prime is 6783421401769. The reversal of 6783421401727 is 7271041243876.

It is a cyclic number.

It is not a de Polignac number, because 6783421401727 - 2¹¹ = 6783421399679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6783421401227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152390208 + ... + 152434714.

It is an arithmetic number, because the mean of its divisors is an integer number (439958375424).

Almost surely, 2^{6783421401727} is an apocalyptic number.

6783421401727 is a deficient number, since it is larger than the sum of its proper divisors (255912605057).

6783421401727 is a wasteful number, since it uses less digits than its factorization.

6783421401727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70470.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 6783421401727 in words is "six trillion, seven hundred eighty-three billion, four hundred twenty-one million, four hundred one thousand, seven hundred twenty-seven".