820058049631 has 2 divisors, whose sum is σ = 820058049632. Its totient is φ = 820058049630.

The previous prime is 820058049497. The next prime is 820058049637. The reversal of 820058049631 is 136940850028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 820058049631 - 2³⁹ = 270302235743 is a prime.

It is a super-2 number, since 2×820058049631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (820058049637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 410029024815 + 410029024816.

It is an arithmetic number, because the mean of its divisors is an integer number (410029024816).

Almost surely, 2^820058049631 is an apocalyptic number.

820058049631 is a deficient number, since it is larger than the sum of its proper divisors (1).

820058049631 is an equidigital number, since it uses as much as digits as its factorization.

820058049631 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 46.

Adding to 820058049631 its reverse (136940850028), we get a palindrome (956998899659).

The spelling of 820058049631 in words is "eight hundred twenty billion, fifty-eight million, forty-nine thousand, six hundred thirty-one".