11388054619 has 4 divisors (see below), whose sum is σ = 11494485144. Its totient is φ = 11281624096.

The previous prime is 11388054617. The next prime is 11388054641. The reversal of 11388054619 is 91645088311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11388054619 - 2¹ = 11388054617 is a prime.

It is a super-2 number, since 2×11388054619² (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 (11388054617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53215102 + ... + 53215315.

It is an arithmetic number, because the mean of its divisors is an integer number (2873621286).

Almost surely, 2^11388054619 is an apocalyptic number.

11388054619 is a deficient number, since it is larger than the sum of its proper divisors (106430525).

11388054619 is a wasteful number, since it uses less digits than its factorization.

11388054619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106430524.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 11388054619 in words is "eleven billion, three hundred eighty-eight million, fifty-four thousand, six hundred nineteen".