11810991046 has 4 divisors (see below), whose sum is σ = 17716486572. Its totient is φ = 5905495522.

The previous prime is 11810991013. The next prime is 11810991053. The reversal of 11810991046 is 64019901811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64019901811 = 739 ⋅86630449.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2952747760 + ... + 2952747763.

It is an arithmetic number, because the mean of its divisors is an integer number (4429121643).

Almost surely, 2^11810991046 is an apocalyptic number.

11810991046 is a deficient number, since it is larger than the sum of its proper divisors (5905495526).

11810991046 is an equidigital number, since it uses as much as digits as its factorization.

11810991046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905495525.

The product of its (nonzero) digits is 15552, while the sum is 40.

The spelling of 11810991046 in words is "eleven billion, eight hundred ten million, nine hundred ninety-one thousand, forty-six".