1011886820784 has 120 divisors (see below), whose sum is σ = 3236648332320. Its totient is φ = 289091165184.

The previous prime is 1011886820743. The next prime is 1011886820803. The reversal of 1011886820784 is 4870286881101.

It is a self number, because there is not a number n which added to its sum of digits gives 1011886820784.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22565874 + ... + 22610670.

It is an arithmetic number, because the mean of its divisors is an integer number (26972069436).

Almost surely, 2^{1011886820784} is an apocalyptic number.

1011886820784 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1011886820784 is an abundant number, since it is smaller than the sum of its proper divisors (2224761511536).

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

1011886820784 is a wasteful number, since it uses less digits than its factorization.

1011886820784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67227 (or 67218 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 54.

The spelling of 1011886820784 in words is "one trillion, eleven billion, eight hundred eighty-six million, eight hundred twenty thousand, seven hundred eighty-four".