11858338819 has 2 divisors, whose sum is σ = 11858338820. Its totient is φ = 11858338818.

The previous prime is 11858338801. The next prime is 11858338859. The reversal of 11858338819 is 91883385811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11858338819 - 2⁹ = 11858338307 is a prime.

It is a super-2 number, since 2×11858338819² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11858338819.

It is not a weakly prime, because it can be changed into another prime (11858338859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5929169409 + 5929169410.

It is an arithmetic number, because the mean of its divisors is an integer number (5929169410).

Almost surely, 2^11858338819 is an apocalyptic number.

11858338819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11858338819 is an equidigital number, since it uses as much as digits as its factorization.

11858338819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 55.

The spelling of 11858338819 in words is "eleven billion, eight hundred fifty-eight million, three hundred thirty-eight thousand, eight hundred nineteen".