11838371850 has 36 divisors (see below), whose sum is σ = 31805760246. Its totient is φ = 3156899040.

The previous prime is 11838371849. The next prime is 11838371873. The reversal of 11838371850 is 5817383811.

It can be written as a sum of positive squares in 3 ways, for example, as 11335222089 + 503149761 = 106467^2 + 22431^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 11838371796 and 11838371805.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13153297 + ... + 13154196.

Almost surely, 2^11838371850 is an apocalyptic number.

11838371850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11838371850 is an abundant number, since it is smaller than the sum of its proper divisors (19967388396).

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

11838371850 is a wasteful number, since it uses less digits than its factorization.

11838371850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26307511 (or 26307503 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 11838371850 in words is "eleven billion, eight hundred thirty-eight million, three hundred seventy-one thousand, eight hundred fifty".