1196041887769 has 3 divisors (see below), whose sum is σ = 1196042981407. Its totient is φ = 1196040794132.

The previous prime is 1196041887743. The next prime is 1196041887797. The reversal of 1196041887769 is 9677881406911.

The square root of 1196041887769 is 1093637.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 757813775625 + 438228112144 = 870525^2 + 661988^2 .

It is not a de Polignac number, because 1196041887769 - 2¹⁹ = 1196041363481 is a prime.

It is a super-2 number, since 2×1196041887769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1196041882769) 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 in 2 ways as a sum of consecutive naturals, for example, 546819 + ... + 1640455.

Almost surely, 2^{1196041887769} is an apocalyptic number.

1196041887769 is the 1093637-th square number.

1196041887769 is the 546819-th centered octagonal number.

It is an amenable number.

1196041887769 is a deficient number, since it is larger than the sum of its proper divisors (1093638).

1196041887769 is an frugal number, since it uses more digits than its factorization.

1196041887769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187274 (or 1093637 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 67.

It can be divided in two parts, 11960 and 41887769, that added together give a square (41899729 = 6473²).

The spelling of 1196041887769 in words is "one trillion, one hundred ninety-six billion, forty-one million, eight hundred eighty-seven thousand, seven hundred sixty-nine".