58781349509 has 2 divisors, whose sum is σ = 58781349510. Its totient is φ = 58781349508.

The previous prime is 58781349469. The next prime is 58781349533. The reversal of 58781349509 is 90594318785.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55753598884 + 3027750625 = 236122^2 + 55025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58781349509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58781349559) 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, 29390674754 + 29390674755.

It is an arithmetic number, because the mean of its divisors is an integer number (29390674755).

Almost surely, 2^58781349509 is an apocalyptic number.

It is an amenable number.

58781349509 is a deficient number, since it is larger than the sum of its proper divisors (1).

58781349509 is an equidigital number, since it uses as much as digits as its factorization.

58781349509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 58781349509 in words is "fifty-eight billion, seven hundred eighty-one million, three hundred forty-nine thousand, five hundred nine".