11835134787 has 12 divisors (see below), whose sum is σ = 18356535816. Its totient is φ = 6762934080.

The previous prime is 11835134777. The next prime is 11835134791. The reversal of 11835134787 is 78743153811.

11835134787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11835134787 - 2¹¹ = 11835132739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11835134747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40255414 + ... + 40255707.

It is an arithmetic number, because the mean of its divisors is an integer number (1529711318).

Almost surely, 2^11835134787 is an apocalyptic number.

11835134787 is a deficient number, since it is larger than the sum of its proper divisors (6521401029).

11835134787 is an equidigital number, since it uses as much as digits as its factorization.

11835134787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80511138 (or 80511131 counting only the distinct ones).

The product of its digits is 564480, while the sum is 48.

The spelling of 11835134787 in words is "eleven billion, eight hundred thirty-five million, one hundred thirty-four thousand, seven hundred eighty-seven".