4664624473081 has 2 divisors, whose sum is σ = 4664624473082. Its totient is φ = 4664624473080.

The previous prime is 4664624473049. The next prime is 4664624473193. The reversal of 4664624473081 is 1803744264664.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3801739538025 + 862884935056 = 1949805^2 + 928916^2 .

It is a cyclic number.

It is not a de Polignac number, because 4664624473081 - 2⁵ = 4664624473049 is a prime.

It is a super-2 number, since 2×4664624473081² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4664624443081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2332312236540 + 2332312236541.

It is an arithmetic number, because the mean of its divisors is an integer number (2332312236541).

Almost surely, 2^{4664624473081} is an apocalyptic number.

It is an amenable number.

4664624473081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4664624473081 is an equidigital number, since it uses as much as digits as its factorization.

4664624473081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 55.

The spelling of 4664624473081 in words is "four trillion, six hundred sixty-four billion, six hundred twenty-four million, four hundred seventy-three thousand, eighty-one".