1158326977537 has 2 divisors, whose sum is σ = 1158326977538. Its totient is φ = 1158326977536.

The previous prime is 1158326977513. The next prime is 1158326977567. The reversal of 1158326977537 is 7357796238511.

It is a Cunningham number, because it is equal to 1076256²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1158326977536 + 1 = 1076256^2 + 1^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1158326977537 is a prime.

It is not a weakly prime, because it can be changed into another prime (1158326977567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 579163488768 + 579163488769.

It is an arithmetic number, because the mean of its divisors is an integer number (579163488769).

Almost surely, 2^{1158326977537} is an apocalyptic number.

It is an amenable number.

1158326977537 is a deficient number, since it is larger than the sum of its proper divisors (1).

1158326977537 is an equidigital number, since it uses as much as digits as its factorization.

1158326977537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 66679200, while the sum is 64.

The spelling of 1158326977537 in words is "one trillion, one hundred fifty-eight billion, three hundred twenty-six million, nine hundred seventy-seven thousand, five hundred thirty-seven".