11859487745 has 16 divisors (see below), whose sum is σ = 16266569088. Its totient is φ = 8131155840.

The previous prime is 11859487741. The next prime is 11859487777. The reversal of 11859487745 is 54778495811.

It is a happy number.

It is not a de Polignac number, because 11859487745 - 2² = 11859487741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11859487741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326117 + ... + 360653.

It is an arithmetic number, because the mean of its divisors is an integer number (1016660568).

Almost surely, 2^11859487745 is an apocalyptic number.

It is an amenable number.

11859487745 is a deficient number, since it is larger than the sum of its proper divisors (4407081343).

11859487745 is an equidigital number, since it uses as much as digits as its factorization.

11859487745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44360.

The product of its digits is 11289600, while the sum is 59.

The spelling of 11859487745 in words is "eleven billion, eight hundred fifty-nine million, four hundred eighty-seven thousand, seven hundred forty-five".