58213995821 has 2 divisors, whose sum is σ = 58213995822. Its totient is φ = 58213995820.

The previous prime is 58213995733. The next prime is 58213995857. The reversal of 58213995821 is 12859931285.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47441631721 + 10772364100 = 217811^2 + 103790^2 .

It is a cyclic number.

It is not a de Polignac number, because 58213995821 - 2²⁶ = 58146886957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58213995871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29106997910 + 29106997911.

It is an arithmetic number, because the mean of its divisors is an integer number (29106997911).

Almost surely, 2^58213995821 is an apocalyptic number.

It is an amenable number.

58213995821 is a deficient number, since it is larger than the sum of its proper divisors (1).

58213995821 is an equidigital number, since it uses as much as digits as its factorization.

58213995821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 53.

The spelling of 58213995821 in words is "fifty-eight billion, two hundred thirteen million, nine hundred ninety-five thousand, eight hundred twenty-one".