11267978765897 has 8 divisors (see below), whose sum is σ = 13005191900352. Its totient is φ = 9562641102000.

The previous prime is 11267978765863. The next prime is 11267978765921. The reversal of 11267978765897 is 79856787976211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11267978765897 - 2²⁴ = 11267961988681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11267978765807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7968866879 + ... + 7968868292.

It is an arithmetic number, because the mean of its divisors is an integer number (1625648987544).

Almost surely, 2^{11267978765897} is an apocalyptic number.

It is an amenable number.

11267978765897 is a deficient number, since it is larger than the sum of its proper divisors (1737213134455).

11267978765897 is a wasteful number, since it uses less digits than its factorization.

11267978765897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15937735279.

The product of its digits is 4480842240, while the sum is 83.

The spelling of 11267978765897 in words is "eleven trillion, two hundred sixty-seven billion, nine hundred seventy-eight million, seven hundred sixty-five thousand, eight hundred ninety-seven".