6877222781 has 32 divisors (see below), whose sum is σ = 8324104320. Its totient is φ = 5598028800.

The previous prime is 6877222747. The next prime is 6877222817. The reversal of 6877222781 is 1872227786.

It is not a de Polignac number, because 6877222781 - 2⁶ = 6877222717 is a prime.

It is a super-2 number, since 2×6877222781² = 94592386359010747922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6877222711) 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, 1046201 + ... + 1052753.

It is an arithmetic number, because the mean of its divisors is an integer number (260128260).

Almost surely, 2^6877222781 is an apocalyptic number.

It is an amenable number.

6877222781 is a deficient number, since it is larger than the sum of its proper divisors (1446881539).

6877222781 is a wasteful number, since it uses less digits than its factorization.

6877222781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6797.

The product of its digits is 1053696, while the sum is 50.

The square root of 6877222781 is about 82929.0225494067. The cubic root of 6877222781 is about 1901.6811326748.

The spelling of 6877222781 in words is "six billion, eight hundred seventy-seven million, two hundred twenty-two thousand, seven hundred eighty-one".