458381405021 has 2 divisors, whose sum is σ = 458381405022. Its totient is φ = 458381405020.

The previous prime is 458381404993. The next prime is 458381405039. The reversal of 458381405021 is 120504183854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454053607225 + 4327797796 = 673835^2 + 65786^2 .

It is a cyclic number.

It is not a de Polignac number, because 458381405021 - 2³⁴ = 441201535837 is a prime.

It is a super-2 number, since 2×458381405021² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 458381405021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (458381405221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 229190702510 + 229190702511.

It is an arithmetic number, because the mean of its divisors is an integer number (229190702511).

Almost surely, 2^458381405021 is an apocalyptic number.

It is an amenable number.

458381405021 is a deficient number, since it is larger than the sum of its proper divisors (1).

458381405021 is an equidigital number, since it uses as much as digits as its factorization.

458381405021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153600, while the sum is 41.

Adding to 458381405021 its reverse (120504183854), we get a palindrome (578885588875).

The spelling of 458381405021 in words is "four hundred fifty-eight billion, three hundred eighty-one million, four hundred five thousand, twenty-one".