58921198781 has 2 divisors, whose sum is σ = 58921198782. Its totient is φ = 58921198780.

The previous prime is 58921198753. The next prime is 58921198789. The reversal of 58921198781 is 18789112985.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48825973156 + 10095225625 = 220966^2 + 100475^2 .

It is a cyclic number.

It is not a de Polignac number, because 58921198781 - 2²² = 58917004477 is a prime.

It is a super-2 number, since 2×58921198781² (a number of 22 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 58921198781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58921198789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29460599390 + 29460599391.

It is an arithmetic number, because the mean of its divisors is an integer number (29460599391).

Almost surely, 2^58921198781 is an apocalyptic number.

It is an amenable number.

58921198781 is a deficient number, since it is larger than the sum of its proper divisors (1).

58921198781 is an equidigital number, since it uses as much as digits as its factorization.

58921198781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 59.

The spelling of 58921198781 in words is "fifty-eight billion, nine hundred twenty-one million, one hundred ninety-eight thousand, seven hundred eighty-one".