4634405981 has 2 divisors, whose sum is σ = 4634405982. Its totient is φ = 4634405980.

The previous prime is 4634405917. The next prime is 4634406043. The reversal of 4634405981 is 1895044364.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3009509881 + 1624896100 = 54859^2 + 40310^2 .

It is a cyclic number.

It is not a de Polignac number, because 4634405981 - 2⁶ = 4634405917 is a prime.

It is a super-2 number, since 2×4634405981² = 42955437593457144722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4634405911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2317202990 + 2317202991.

It is an arithmetic number, because the mean of its divisors is an integer number (2317202991).

Almost surely, 2^4634405981 is an apocalyptic number.

It is an amenable number.

4634405981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4634405981 is an equidigital number, since it uses as much as digits as its factorization.

4634405981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 4634405981 is about 68076.4715669078. The cubic root of 4634405981 is about 1667.2396318351.

The spelling of 4634405981 in words is "four billion, six hundred thirty-four million, four hundred five thousand, nine hundred eighty-one".