11338137857 has 4 divisors (see below), whose sum is σ = 11348531376. Its totient is φ = 11327744340.

The previous prime is 11338137787. The next prime is 11338137887. The reversal of 11338137857 is 75873183311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75873183311 = 23 ⋅3298834057.

It is a cyclic number.

It is not a de Polignac number, because 11338137857 - 2¹² = 11338133761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11338137887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5195123 + ... + 5197304.

It is an arithmetic number, because the mean of its divisors is an integer number (2837132844).

Almost surely, 2^11338137857 is an apocalyptic number.

It is an amenable number.

11338137857 is a deficient number, since it is larger than the sum of its proper divisors (10393519).

11338137857 is a wasteful number, since it uses less digits than its factorization.

11338137857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10393518.

The product of its digits is 423360, while the sum is 47.

The spelling of 11338137857 in words is "eleven billion, three hundred thirty-eight million, one hundred thirty-seven thousand, eight hundred fifty-seven".