11487172006 has 4 divisors (see below), whose sum is σ = 17230758012. Its totient is φ = 5743586002.

The previous prime is 11487172001. The next prime is 11487172063. The reversal of 11487172006 is 60027178411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11487172001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2871793000 + ... + 2871793003.

It is an arithmetic number, because the mean of its divisors is an integer number (4307689503).

Almost surely, 2^11487172006 is an apocalyptic number.

11487172006 is a deficient number, since it is larger than the sum of its proper divisors (5743586006).

11487172006 is an equidigital number, since it uses as much as digits as its factorization.

11487172006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5743586005.

The product of its (nonzero) digits is 18816, while the sum is 37.

The spelling of 11487172006 in words is "eleven billion, four hundred eighty-seven million, one hundred seventy-two thousand, six".