7823408881 has 2 divisors, whose sum is σ = 7823408882. Its totient is φ = 7823408880.

The previous prime is 7823408867. The next prime is 7823408911. The reversal of 7823408881 is 1888043287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7776417856 + 46991025 = 88184^2 + 6855^2 .

It is a cyclic number.

It is not a de Polignac number, because 7823408881 - 2⁵ = 7823408849 is a prime.

It is a super-2 number, since 2×7823408881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7823400881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3911704440 + 3911704441.

It is an arithmetic number, because the mean of its divisors is an integer number (3911704441).

Almost surely, 2^7823408881 is an apocalyptic number.

It is an amenable number.

7823408881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7823408881 is an equidigital number, since it uses as much as digits as its factorization.

7823408881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 7823408881 is about 88450.0360712193. The cubic root of 7823408881 is about 1985.1744464487.

The spelling of 7823408881 in words is "seven billion, eight hundred twenty-three million, four hundred eight thousand, eight hundred eighty-one".