11781485075 has 24 divisors (see below), whose sum is σ = 14960532048. Its totient is φ = 9198766080.

The previous prime is 11781485047. The next prime is 11781485077. The reversal of 11781485075 is 57058418711.

It is not a de Polignac number, because 11781485075 - 2⁶ = 11781485011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11781485077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665947 + ... + 1673003.

It is an arithmetic number, because the mean of its divisors is an integer number (623355502).

Almost surely, 2^11781485075 is an apocalyptic number.

11781485075 is a deficient number, since it is larger than the sum of its proper divisors (3179046973).

11781485075 is a wasteful number, since it uses less digits than its factorization.

11781485075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663 (or 8658 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 47.

The spelling of 11781485075 in words is "eleven billion, seven hundred eighty-one million, four hundred eighty-five thousand, seventy-five".