11287266915 has 16 divisors (see below), whose sum is σ = 18062005248. Its totient is φ = 6019082976.

The previous prime is 11287266889. The next prime is 11287266917. The reversal of 11287266915 is 51966278211.

It is a happy number.

It is not a de Polignac number, because 11287266915 - 2⁵ = 11287266883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11287266917) 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 15 ways as a sum of consecutive naturals, for example, 78904 + ... + 169706.

It is an arithmetic number, because the mean of its divisors is an integer number (1128875328).

Almost surely, 2^11287266915 is an apocalyptic number.

11287266915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11287266915 is a deficient number, since it is larger than the sum of its proper divisors (6774738333).

11287266915 is an equidigital number, since it uses as much as digits as its factorization.

11287266915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99098.

The product of its digits is 362880, while the sum is 48.

The spelling of 11287266915 in words is "eleven billion, two hundred eighty-seven million, two hundred sixty-six thousand, nine hundred fifteen".