458319806561 has 4 divisors (see below), whose sum is σ = 459462749124. Its totient is φ = 457176864000.

The previous prime is 458319806531. The next prime is 458319806603. The reversal of 458319806561 is 165608913854.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 270484246561 + 187835560000 = 520081^2 + 433400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-458319806561 is a prime.

It is a super-2 number, since 2×458319806561² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 458319806497 and 458319806506.

It is not an unprimeable number, because it can be changed into a prime (458319806531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571470680 + ... + 571471481.

It is an arithmetic number, because the mean of its divisors is an integer number (114865687281).

Almost surely, 2^458319806561 is an apocalyptic number.

It is an amenable number.

458319806561 is a deficient number, since it is larger than the sum of its proper divisors (1142942563).

458319806561 is a wasteful number, since it uses less digits than its factorization.

458319806561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142942562.

The product of its (nonzero) digits is 6220800, while the sum is 56.

The spelling of 458319806561 in words is "four hundred fifty-eight billion, three hundred nineteen million, eight hundred six thousand, five hundred sixty-one".