11945187612 has 30 divisors (see below), whose sum is σ = 31227080808. Its totient is φ = 3981729096.

The previous prime is 11945187589. The next prime is 11945187629. The reversal of 11945187612 is 21678154911.

11945187612 is a `hidden beast` number, since 1 + 19 + 4 + 5 + 18 + 7 + 612 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18433608 + ... + 18434255.

Almost surely, 2^11945187612 is an apocalyptic number.

11945187612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11945187612 is an abundant number, since it is smaller than the sum of its proper divisors (19281893196).

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

11945187612 is a wasteful number, since it uses less digits than its factorization.

11945187612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36867879 (or 36867868 counting only the distinct ones).

The product of its digits is 120960, while the sum is 45.

The spelling of 11945187612 in words is "eleven billion, nine hundred forty-five million, one hundred eighty-seven thousand, six hundred twelve".