11389209950 has 12 divisors (see below), whose sum is σ = 21183930600. Its totient is φ = 4555683960.

The previous prime is 11389209941. The next prime is 11389209961. The reversal of 11389209950 is 5990298311.

It is a junction number, because it is equal to n+sod(n) for n = 11389209895 and 11389209904.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 113892050 + ... + 113892149.

It is an arithmetic number, because the mean of its divisors is an integer number (1765327550).

Almost surely, 2^11389209950 is an apocalyptic number.

11389209950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11389209950 is a deficient number, since it is larger than the sum of its proper divisors (9794720650).

11389209950 is a wasteful number, since it uses less digits than its factorization.

11389209950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227784211 (or 227784206 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 11389209950 in words is "eleven billion, three hundred eighty-nine million, two hundred nine thousand, nine hundred fifty".