11770587505 has 4 divisors (see below), whose sum is σ = 14124705012. Its totient is φ = 9416470000.

The previous prime is 11770587487. The next prime is 11770587523. The reversal of 11770587505 is 50578507711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50578507711 = 16477 ⋅3069643.

It is an interprime number because it is at equal distance from previous prime (11770587487) and next prime (11770587523).

It can be written as a sum of positive squares in 2 ways, for example, as 4265657344 + 7504930161 = 65312^2 + 86631^2 .

It is not a de Polignac number, because 11770587505 - 2⁵ = 11770587473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177058746 + ... + 1177058755.

It is an arithmetic number, because the mean of its divisors is an integer number (3531176253).

Almost surely, 2^11770587505 is an apocalyptic number.

It is an amenable number.

11770587505 is a deficient number, since it is larger than the sum of its proper divisors (2354117507).

11770587505 is an equidigital number, since it uses as much as digits as its factorization.

11770587505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354117506.

The product of its (nonzero) digits is 343000, while the sum is 46.

The spelling of 11770587505 in words is "eleven billion, seven hundred seventy million, five hundred eighty-seven thousand, five hundred five".