11894219435 has 16 divisors (see below), whose sum is σ = 16495358400. Its totient is φ = 8064393216.

The previous prime is 11894219419. The next prime is 11894219437. The reversal of 11894219435 is 53491249811.

It is a cyclic number.

It is not a de Polignac number, because 11894219435 - 2⁴ = 11894219419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11894219435.

It is not an unprimeable number, because it can be changed into a prime (11894219437) 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, 1906070 + ... + 1912299.

It is an arithmetic number, because the mean of its divisors is an integer number (1030959900).

Almost surely, 2^11894219435 is an apocalyptic number.

11894219435 is a deficient number, since it is larger than the sum of its proper divisors (4601138965).

11894219435 is an equidigital number, since it uses as much as digits as its factorization.

11894219435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3818470.

The product of its digits is 311040, while the sum is 47.

The spelling of 11894219435 in words is "eleven billion, eight hundred ninety-four million, two hundred nineteen thousand, four hundred thirty-five".