11142447850 has 24 divisors (see below), whose sum is σ = 20752257708. Its totient is φ = 4451107200.

The previous prime is 11142447847. The next prime is 11142447859. The reversal of 11142447850 is 5874424111.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2168485489 + 8973962361 = 46567^2 + 94731^2 .

It is not an unprimeable number, because it can be changed into a prime (11142447859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108369 + ... + 184468.

Almost surely, 2^11142447850 is an apocalyptic number.

11142447850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11142447850 is a deficient number, since it is larger than the sum of its proper divisors (9609809858).

11142447850 is a wasteful number, since it uses less digits than its factorization.

11142447850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293610 (or 293605 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The spelling of 11142447850 in words is "eleven billion, one hundred forty-two million, four hundred forty-seven thousand, eight hundred fifty".