6777778249423 has 16 divisors (see below), whose sum is σ = 6937805952000. Its totient is φ = 6619363130880.

The previous prime is 6777778249421. The next prime is 6777778249477. The reversal of 6777778249423 is 3249428777776.

It is a cyclic number.

It is not a de Polignac number, because 6777778249423 - 2¹ = 6777778249421 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 (6777778249421) 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, 23570290 + ... + 23856112.

It is an arithmetic number, because the mean of its divisors is an integer number (433612872000).

Almost surely, 2^{6777778249423} is an apocalyptic number.

6777778249423 is a deficient number, since it is larger than the sum of its proper divisors (160027702577).

6777778249423 is a wasteful number, since it uses less digits than its factorization.

6777778249423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288642.

The product of its digits is 1394039808, while the sum is 73.

The spelling of 6777778249423 in words is "six trillion, seven hundred seventy-seven billion, seven hundred seventy-eight million, two hundred forty-nine thousand, four hundred twenty-three".