1189383506425 has 12 divisors (see below), whose sum is σ = 1475461346796. Its totient is φ = 951103064000.

The previous prime is 1189383506393. The next prime is 1189383506429. The reversal of 1189383506425 is 5246053839811.

It can be written as a sum of positive squares in 6 ways, for example, as 83380027536 + 1106003478889 = 288756^2 + 1051667^2 .

It is not a de Polignac number, because 1189383506425 - 2⁵ = 1189383506393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1189383506429) 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 11 ways as a sum of consecutive naturals, for example, 10033426 + ... + 10151275.

It is an arithmetic number, because the mean of its divisors is an integer number (122955112233).

Almost surely, 2^{1189383506425} is an apocalyptic number.

It is an amenable number.

1189383506425 is a deficient number, since it is larger than the sum of its proper divisors (286077840371).

1189383506425 is a wasteful number, since it uses less digits than its factorization.

1189383506425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20187068 (or 20187063 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 1189383506425 in words is "one trillion, one hundred eighty-nine billion, three hundred eighty-three million, five hundred six thousand, four hundred twenty-five".