11913785192 has 32 divisors (see below), whose sum is σ = 22419612480. Its totient is φ = 5935265280.

The previous prime is 11913785171. The next prime is 11913785267. The reversal of 11913785192 is 29158731911.

It is a super-2 number, since 2×11913785192² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2813717 + ... + 2817947.

It is an arithmetic number, because the mean of its divisors is an integer number (700612890).

Almost surely, 2^11913785192 is an apocalyptic number.

It is an amenable number.

11913785192 is a deficient number, since it is larger than the sum of its proper divisors (10505827288).

11913785192 is a wasteful number, since it uses less digits than its factorization.

11913785192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5433 (or 5429 counting only the distinct ones).

The product of its digits is 136080, while the sum is 47.

The spelling of 11913785192 in words is "eleven billion, nine hundred thirteen million, seven hundred eighty-five thousand, one hundred ninety-two".