6774388881 has 32 divisors (see below), whose sum is σ = 10264423680. Its totient is φ = 3942749184.

The previous prime is 6774388843. The next prime is 6774388889. The reversal of 6774388881 is 1888834776.

It is not a de Polignac number, because 6774388881 - 2¹⁰ = 6774387857 is a prime.

It is a super-2 number, since 2×6774388881² = 91784689422032864322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6774388889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37405 + ... + 122261.

It is an arithmetic number, because the mean of its divisors is an integer number (320763240).

Almost surely, 2^6774388881 is an apocalyptic number.

It is an amenable number.

6774388881 is a deficient number, since it is larger than the sum of its proper divisors (3490034799).

6774388881 is a wasteful number, since it uses less digits than its factorization.

6774388881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84985.

The product of its digits is 14450688, while the sum is 60.

The square root of 6774388881 is about 82306.6757985037. The cubic root of 6774388881 is about 1892.1549918879.

The spelling of 6774388881 in words is "six billion, seven hundred seventy-four million, three hundred eighty-eight thousand, eight hundred eighty-one".