1158353587997 has 2 divisors, whose sum is σ = 1158353587998. Its totient is φ = 1158353587996.

The previous prime is 1158353587981. The next prime is 1158353588033. The reversal of 1158353587997 is 7997853538511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887023028761 + 271330559236 = 941819^2 + 520894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158353587997 - 2⁴ = 1158353587981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1158353587997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1158353581997) 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, 579176793998 + 579176793999.

It is an arithmetic number, because the mean of its divisors is an integer number (579176793999).

Almost surely, 2^{1158353587997} is an apocalyptic number.

It is an amenable number.

1158353587997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158353587997 is an equidigital number, since it uses as much as digits as its factorization.

1158353587997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768000, while the sum is 71.

The spelling of 1158353587997 in words is "one trillion, one hundred fifty-eight billion, three hundred fifty-three million, five hundred eighty-seven thousand, nine hundred ninety-seven".