6623023121881 has 2 divisors, whose sum is σ = 6623023121882. Its totient is φ = 6623023121880.

The previous prime is 6623023121873. The next prime is 6623023121941. The reversal of 6623023121881 is 1881213203266.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5779961264025 + 843061857856 = 2404155^2 + 918184^2 .

It is a cyclic number.

It is not a de Polignac number, because 6623023121881 - 2³ = 6623023121873 is a prime.

It is a super-2 number, since 2×6623023121881² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6623023124881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311511560940 + 3311511560941.

It is an arithmetic number, because the mean of its divisors is an integer number (3311511560941).

Almost surely, 2^{6623023121881} is an apocalyptic number.

It is an amenable number.

6623023121881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6623023121881 is an equidigital number, since it uses as much as digits as its factorization.

6623023121881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 6623023121881 in words is "six trillion, six hundred twenty-three billion, twenty-three million, one hundred twenty-one thousand, eight hundred eighty-one".