11396778239 has 12 divisors (see below), whose sum is σ = 14462702568. Its totient is φ = 8880606000.

The previous prime is 11396778233. The next prime is 11396778287. The reversal of 11396778239 is 93287769311.

It is not a de Polignac number, because 11396778239 - 2⁸ = 11396777983 is a prime.

It is a super-2 number, since 2×11396778239² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11396778233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10571612 + ... + 10572689.

It is an arithmetic number, because the mean of its divisors is an integer number (1205225214).

Almost surely, 2^11396778239 is an apocalyptic number.

11396778239 is a deficient number, since it is larger than the sum of its proper divisors (3065924329).

11396778239 is a wasteful number, since it uses less digits than its factorization.

11396778239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21144326 (or 21144319 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 56.

The spelling of 11396778239 in words is "eleven billion, three hundred ninety-six million, seven hundred seventy-eight thousand, two hundred thirty-nine".