6777801578001 has 4 divisors (see below), whose sum is σ = 9037068770672. Its totient is φ = 4518534385332.

The previous prime is 6777801577931. The next prime is 6777801578063. The reversal of 6777801578001 is 1008751087776.

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 not a de Polignac number, because 6777801578001 - 2¹¹ = 6777801575953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6777801574001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129633596331 + ... + 1129633596336.

It is an arithmetic number, because the mean of its divisors is an integer number (2259267192668).

Almost surely, 2^{6777801578001} is an apocalyptic number.

It is an amenable number.

6777801578001 is a deficient number, since it is larger than the sum of its proper divisors (2259267192671).

6777801578001 is a wasteful number, since it uses less digits than its factorization.

6777801578001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2259267192670.

The product of its (nonzero) digits is 4609920, while the sum is 57.

The spelling of 6777801578001 in words is "six trillion, seven hundred seventy-seven billion, eight hundred one million, five hundred seventy-eight thousand, one".