11151117894 has 32 divisors (see below), whose sum is σ = 25795365120. Its totient is φ = 3147646752.

The previous prime is 11151117893. The next prime is 11151117919. The reversal of 11151117894 is 49871115111.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151117893) 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, 1595929 + ... + 1602900.

It is an arithmetic number, because the mean of its divisors is an integer number (806105160).

Almost surely, 2^11151117894 is an apocalyptic number.

11151117894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11151117894 is an abundant number, since it is smaller than the sum of its proper divisors (14644247226).

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

11151117894 is a wasteful number, since it uses less digits than its factorization.

11151117894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198924.

The product of its digits is 10080, while the sum is 39.

The spelling of 11151117894 in words is "eleven billion, one hundred fifty-one million, one hundred seventeen thousand, eight hundred ninety-four".