11344791890 has 32 divisors (see below), whose sum is σ = 21664696320. Its totient is φ = 4265218944.

The previous prime is 11344791869. The next prime is 11344791893. The reversal of 11344791890 is 9819744311.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11344791893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210947 + ... + 259206.

It is an arithmetic number, because the mean of its divisors is an integer number (677021760).

Almost surely, 2^11344791890 is an apocalyptic number.

11344791890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11344791890 is a deficient number, since it is larger than the sum of its proper divisors (10319904430).

11344791890 is a wasteful number, since it uses less digits than its factorization.

11344791890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470306.

The product of its (nonzero) digits is 217728, while the sum is 47.

The spelling of 11344791890 in words is "eleven billion, three hundred forty-four million, seven hundred ninety-one thousand, eight hundred ninety".