11900994075 has 72 divisors (see below), whose sum is σ = 23551358688. Its totient is φ = 5714058240.

The previous prime is 11900994047. The next prime is 11900994097. The reversal of 11900994075 is 57049900911.

It is not a de Polignac number, because 11900994075 - 2¹⁰ = 11900993051 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 11900994075.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 20337 + ... + 155613.

It is an arithmetic number, because the mean of its divisors is an integer number (327102204).

Almost surely, 2^11900994075 is an apocalyptic number.

11900994075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11900994075 is a deficient number, since it is larger than the sum of its proper divisors (11650364613).

11900994075 is a wasteful number, since it uses less digits than its factorization.

11900994075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135333 (or 135325 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 11900994075 in words is "eleven billion, nine hundred million, nine hundred ninety-four thousand, seventy-five".