11941785619 has 8 divisors (see below), whose sum is σ = 12354827760. Its totient is φ = 11528827296.

The previous prime is 11941785607. The next prime is 11941785629. The reversal of 11941785619 is 91658714911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11941785619 - 2¹³ = 11941777427 is a prime.

It is a super-2 number, since 2×11941785619² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11941785629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444364 + ... + 470470.

It is an arithmetic number, because the mean of its divisors is an integer number (1544353470).

Almost surely, 2^11941785619 is an apocalyptic number.

11941785619 is a deficient number, since it is larger than the sum of its proper divisors (413042141).

11941785619 is a wasteful number, since it uses less digits than its factorization.

11941785619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41909.

The product of its digits is 544320, while the sum is 52.

The spelling of 11941785619 in words is "eleven billion, nine hundred forty-one million, seven hundred eighty-five thousand, six hundred nineteen".