58155257861 has 2 divisors, whose sum is σ = 58155257862. Its totient is φ = 58155257860.

The previous prime is 58155257819. The next prime is 58155257873. The reversal of 58155257861 is 16875255185.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33054876100 + 25100381761 = 181810^2 + 158431^2 .

It is a cyclic number.

It is not a de Polignac number, because 58155257861 - 2²² = 58151063557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (58157257861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29077628930 + 29077628931.

It is an arithmetic number, because the mean of its divisors is an integer number (29077628931).

Almost surely, 2^58155257861 is an apocalyptic number.

It is an amenable number.

58155257861 is a deficient number, since it is larger than the sum of its proper divisors (1).

58155257861 is an equidigital number, since it uses as much as digits as its factorization.

58155257861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360000, while the sum is 53.

The spelling of 58155257861 in words is "fifty-eight billion, one hundred fifty-five million, two hundred fifty-seven thousand, eight hundred sixty-one".