11378872866 has 32 divisors (see below), whose sum is σ = 23315454720. Its totient is φ = 3700516736.

The previous prime is 11378872853. The next prime is 11378872867. The reversal of 11378872866 is 66827887311.

It is not an unprimeable number, because it can be changed into a prime (11378872867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25750 + ... + 153038.

It is an arithmetic number, because the mean of its divisors is an integer number (728607960).

Almost surely, 2^11378872866 is an apocalyptic number.

11378872866 is an abundant number, since it is smaller than the sum of its proper divisors (11936581854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11378872866 is a wasteful number, since it uses less digits than its factorization.

11378872866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127658.

The product of its digits is 5419008, while the sum is 57.

The spelling of 11378872866 in words is "eleven billion, three hundred seventy-eight million, eight hundred seventy-two thousand, eight hundred sixty-six".