1129158342642 has 64 divisors (see below), whose sum is σ = 2477901404160. Its totient is φ = 340186449600.

The previous prime is 1129158342629. The next prime is 1129158342661. The reversal of 1129158342642 is 2462438519211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1129158342591 and 1129158342600.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 53304409 + ... + 53325587.

It is an arithmetic number, because the mean of its divisors is an integer number (38717209440).

Almost surely, 2^{1129158342642} is an apocalyptic number.

1129158342642 is an abundant number, since it is smaller than the sum of its proper divisors (1348743061518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1129158342642 is a wasteful number, since it uses less digits than its factorization.

1129158342642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25839.

The product of its digits is 829440, while the sum is 48.

The spelling of 1129158342642 in words is "one trillion, one hundred twenty-nine billion, one hundred fifty-eight million, three hundred forty-two thousand, six hundred forty-two".