58178395861 has 2 divisors, whose sum is σ = 58178395862. Its totient is φ = 58178395860.

The previous prime is 58178395841. The next prime is 58178395883. The reversal of 58178395861 is 16859387185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48650683761 + 9527712100 = 220569^2 + 97610^2 .

It is a cyclic number.

It is not a de Polignac number, because 58178395861 - 2⁵ = 58178395829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 58178395861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58178395811) 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, 29089197930 + 29089197931.

It is an arithmetic number, because the mean of its divisors is an integer number (29089197931).

Almost surely, 2^58178395861 is an apocalyptic number.

It is an amenable number.

58178395861 is a deficient number, since it is larger than the sum of its proper divisors (1).

58178395861 is an equidigital number, since it uses as much as digits as its factorization.

58178395861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14515200, while the sum is 61.

The spelling of 58178395861 in words is "fifty-eight billion, one hundred seventy-eight million, three hundred ninety-five thousand, eight hundred sixty-one".