6922729474281 has 6 divisors (see below), whose sum is σ = 9999498129530. Its totient is φ = 4615152982848.

The previous prime is 6922729474267. The next prime is 6922729474337. The reversal of 6922729474281 is 1824749272296.

It is a happy number.

6922729474281 is a `hidden beast` number, since 6 + 9 + 227 + 294 + 7 + 42 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3829422385881 + 3093307088400 = 1956891^2 + 1758780^2 .

It is not a de Polignac number, because 6922729474281 - 2¹⁷ = 6922729343209 is a prime.

It is a super-2 number, since 2×6922729474281² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6922729475281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 384596081896 + ... + 384596081913.

Almost surely, 2^{6922729474281} is an apocalyptic number.

It is an amenable number.

6922729474281 is a deficient number, since it is larger than the sum of its proper divisors (3076768655249).

6922729474281 is a wasteful number, since it uses less digits than its factorization.

6922729474281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769192163815 (or 769192163812 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 63.

The spelling of 6922729474281 in words is "six trillion, nine hundred twenty-two billion, seven hundred twenty-nine million, four hundred seventy-four thousand, two hundred eighty-one".