11847154747 has 4 divisors (see below), whose sum is σ = 12047954040. Its totient is φ = 11646355456.

The previous prime is 11847154723. The next prime is 11847154751. The reversal of 11847154747 is 74745174811.

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 11847154747 - 2⁷ = 11847154619 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11847154747.

It is not an unprimeable number, because it can be changed into a prime (11847154147) 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, 100399558 + ... + 100399675.

It is an arithmetic number, because the mean of its divisors is an integer number (3011988510).

Almost surely, 2^11847154747 is an apocalyptic number.

11847154747 is a deficient number, since it is larger than the sum of its proper divisors (200799293).

11847154747 is an equidigital number, since it uses as much as digits as its factorization.

11847154747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200799292.

The product of its digits is 878080, while the sum is 49.

The spelling of 11847154747 in words is "eleven billion, eight hundred forty-seven million, one hundred fifty-four thousand, seven hundred forty-seven".