1111831089778 has 32 divisors (see below), whose sum is σ = 1743521008320. Its totient is φ = 531279517440.

The previous prime is 1111831089769. The next prime is 1111831089779. The reversal of 1111831089778 is 8779801381111.

It is not an unprimeable number, because it can be changed into a prime (1111831089779) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 963126 + ... + 1775182.

It is an arithmetic number, because the mean of its divisors is an integer number (54485031510).

Almost surely, 2^{1111831089778} is an apocalyptic number.

1111831089778 is a deficient number, since it is larger than the sum of its proper divisors (631689918542).

1111831089778 is a wasteful number, since it uses less digits than its factorization.

1111831089778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812442.

The product of its (nonzero) digits is 677376, while the sum is 55.

The spelling of 1111831089778 in words is "one trillion, one hundred eleven billion, eight hundred thirty-one million, eighty-nine thousand, seven hundred seventy-eight".