11194377640 has 24 divisors (see below), whose sum is σ = 25188855390. Its totient is φ = 4477483392.

The previous prime is 11194377629. The next prime is 11194377643. The reversal of 11194377640 is 4677349111.

11194377640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 10171529316 + 1022848324 = 100854^2 + 31982^2 .

It is not an unprimeable number, because it can be changed into a prime (11194377643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 660796 + ... + 677524.

Almost surely, 2^11194377640 is an apocalyptic number.

11194377640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11194377640 is an abundant number, since it is smaller than the sum of its proper divisors (13994477750).

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

11194377640 is an frugal number, since it uses more digits than its factorization.

11194377640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33469 (or 16736 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 11194377640 in words is "eleven billion, one hundred ninety-four million, three hundred seventy-seven thousand, six hundred forty".