4311685722906 has 24 divisors (see below), whose sum is σ = 9357126738804. Its totient is φ = 1434899188800.

The previous prime is 4311685722863. The next prime is 4311685722917. The reversal of 4311685722906 is 6092275861134.

It is a happy number.

4311685722906 is a `hidden beast` number, since 4 + 3 + 1 + 1 + 68 + 572 + 2 + 9 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4311681978681 + 3744225 = 2076459^2 + 1935^2 .

It is a super-2 number, since 2×4311685722906² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194104045 + ... + 194126256.

It is a 1-persistent number, because it is pandigital, but 2⋅4311685722906 = 8623371445812 is not.

Almost surely, 2^{4311685722906} is an apocalyptic number.

4311685722906 is an abundant number, since it is smaller than the sum of its proper divisors (5045441015898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4311685722906 is a wasteful number, since it uses less digits than its factorization.

4311685722906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388230926 (or 388230923 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 4311685722906 in words is "four trillion, three hundred eleven billion, six hundred eighty-five million, seven hundred twenty-two thousand, nine hundred six".