11685574403 has 4 divisors (see below), whose sum is σ = 12062528448. Its totient is φ = 11308620360.

The previous prime is 11685574357. The next prime is 11685574409. The reversal of 11685574403 is 30447558611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11685574403 - 2⁶ = 11685574339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11685574409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188476976 + ... + 188477037.

It is an arithmetic number, because the mean of its divisors is an integer number (3015632112).

Almost surely, 2^11685574403 is an apocalyptic number.

11685574403 is a deficient number, since it is larger than the sum of its proper divisors (376954045).

11685574403 is an equidigital number, since it uses as much as digits as its factorization.

11685574403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376954044.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 11685574403 in words is "eleven billion, six hundred eighty-five million, five hundred seventy-four thousand, four hundred three".