11512890907 has 16 divisors (see below), whose sum is σ = 13625821440. Its totient is φ = 9522549792.

The previous prime is 11512890889. The next prime is 11512890911. The reversal of 11512890907 is 70909821511.

11512890907 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 11512890907 - 2¹⁵ = 11512858139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (11512890947) 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 15 ways as a sum of consecutive naturals, for example, 205432 + ... + 255397.

It is an arithmetic number, because the mean of its divisors is an integer number (851613840).

Almost surely, 2^11512890907 is an apocalyptic number.

11512890907 is a deficient number, since it is larger than the sum of its proper divisors (2112930533).

11512890907 is an equidigital number, since it uses as much as digits as its factorization.

11512890907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460962.

The product of its (nonzero) digits is 45360, while the sum is 43.

The spelling of 11512890907 in words is "eleven billion, five hundred twelve million, eight hundred ninety thousand, nine hundred seven".