1177860895849 has 9 divisors (see below), whose sum is σ = 1294686668989. Its totient is φ = 1070771779660.

The previous prime is 1177860895807. The next prime is 1177860895891. The reversal of 1177860895849 is 9485980687711.

The square root of 1177860895849 is 1085293.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (1177860895807) and next prime (1177860895891).

It is not a de Polignac number, because 1177860895849 - 2¹⁹ = 1177860371561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1177860890849) 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 in 8 ways as a sum of consecutive naturals, for example, 11888892 + ... + 11987554.

Almost surely, 2^{1177860895849} is an apocalyptic number.

1177860895849 is the 1085293-rd square number.

1177860895849 is the 542647-th centered octagonal number.

It is an amenable number.

1177860895849 is a deficient number, since it is larger than the sum of its proper divisors (116825773140).

1177860895849 is an frugal number, since it uses more digits than its factorization.

1177860895849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197348 (or 98674 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 73.

The spelling of 1177860895849 in words is "one trillion, one hundred seventy-seven billion, eight hundred sixty million, eight hundred ninety-five thousand, eight hundred forty-nine".