11011691792 has 20 divisors (see below), whose sum is σ = 22590162396. Its totient is φ = 5181972480.

The previous prime is 11011691791. The next prime is 11011691857. The reversal of 11011691792 is 29719611011.

It can be written as a sum of positive squares in 2 ways, for example, as 7115934736 + 3895757056 = 84356^2 + 62416^2 .

It is a super-2 number, since 2×11011691792² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11011691791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20241809 + ... + 20242352.

Almost surely, 2^11011691792 is an apocalyptic number.

It is an amenable number.

11011691792 is an abundant number, since it is smaller than the sum of its proper divisors (11578470604).

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

11011691792 is a wasteful number, since it uses less digits than its factorization.

11011691792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40484186 (or 40484180 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 38.

The spelling of 11011691792 in words is "eleven billion, eleven million, six hundred ninety-one thousand, seven hundred ninety-two".