1129235951618 has 8 divisors (see below), whose sum is σ = 1695839690748. Its totient is φ = 563956054704.

The previous prime is 1129235951593. The next prime is 1129235951747. The reversal of 1129235951618 is 8161595329211.

It can be written as a sum of positive squares in 2 ways, for example, as 1081793448649 + 47442502969 = 1040093^2 + 217813^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1129235951618² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1129235951618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330958421 + ... + 330961832.

Almost surely, 2^{1129235951618} is an apocalyptic number.

1129235951618 is a deficient number, since it is larger than the sum of its proper divisors (566603739130).

1129235951618 is an equidigital number, since it uses as much as digits as its factorization.

1129235951618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661921108.

The product of its digits is 1166400, while the sum is 53.

The spelling of 1129235951618 in words is "one trillion, one hundred twenty-nine billion, two hundred thirty-five million, nine hundred fifty-one thousand, six hundred eighteen".