11819462085 has 20 divisors (see below), whose sum is σ = 21187480908. Its totient is φ = 6303712896.

The previous prime is 11819461981. The next prime is 11819462089. The reversal of 11819462085 is 58026491811.

It is a happy number.

11819462085 is a `hidden beast` number, since 1 + 1 + 8 + 19 + 4 + 620 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2347111809 + 9472350276 = 48447^2 + 97326^2 .

It is not a de Polignac number, because 11819462085 - 2¹⁸ = 11819199941 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 11819462085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819462089) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14591524 + ... + 14592333.

Almost surely, 2^11819462085 is an apocalyptic number.

11819462085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11819462085 is a deficient number, since it is larger than the sum of its proper divisors (9368018823).

11819462085 is an equidigital number, since it uses as much as digits as its factorization.

11819462085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29183874 (or 29183865 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 11819462085 in words is "eleven billion, eight hundred nineteen million, four hundred sixty-two thousand, eighty-five".