11128756986 has 48 divisors (see below), whose sum is σ = 24762607584. Its totient is φ = 3610166112.

The previous prime is 11128756963. The next prime is 11128756987. The reversal of 11128756986 is 68965782111.

It is a happy number.

It is a super-3 number, since 3×11128756986³ (a number of 31 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11128756987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 188445 + ... + 240351.

It is an arithmetic number, because the mean of its divisors is an integer number (515887658).

Almost surely, 2^11128756986 is an apocalyptic number.

11128756986 is an abundant number, since it is smaller than the sum of its proper divisors (13633850598).

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

11128756986 is a wasteful number, since it uses less digits than its factorization.

11128756986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52235 (or 52232 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 54.

The spelling of 11128756986 in words is "eleven billion, one hundred twenty-eight million, seven hundred fifty-six thousand, nine hundred eighty-six".