4580243981 has 2 divisors, whose sum is σ = 4580243982. Its totient is φ = 4580243980.

The previous prime is 4580243971. The next prime is 4580243999. The reversal of 4580243981 is 1893420854.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3151025956 + 1429218025 = 56134^2 + 37805^2 .

It is a cyclic number.

It is not a de Polignac number, because 4580243981 - 2²² = 4576049677 is a prime.

It is a super-2 number, since 2×4580243981² = 41957269850973456722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4580243971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2290121990 + 2290121991.

It is an arithmetic number, because the mean of its divisors is an integer number (2290121991).

Almost surely, 2^4580243981 is an apocalyptic number.

It is an amenable number.

4580243981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4580243981 is an equidigital number, since it uses as much as digits as its factorization.

4580243981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 4580243981 is about 67677.4998134535. The cubic root of 4580243981 is about 1660.7191905934.

The spelling of 4580243981 in words is "four billion, five hundred eighty million, two hundred forty-three thousand, nine hundred eighty-one".