11877438147 has 4 divisors (see below), whose sum is σ = 15836584200. Its totient is φ = 7918292096.

The previous prime is 11877438121. The next prime is 11877438151. The reversal of 11877438147 is 74183477811.

It is a happy number.

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 11877438147 - 2¹⁹ = 11876913859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11877438147.

It is not an unprimeable number, because it can be changed into a prime (11877438187) 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, 1979573022 + ... + 1979573027.

It is an arithmetic number, because the mean of its divisors is an integer number (3959146050).

Almost surely, 2^11877438147 is an apocalyptic number.

11877438147 is a deficient number, since it is larger than the sum of its proper divisors (3959146053).

11877438147 is an equidigital number, since it uses as much as digits as its factorization.

11877438147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3959146052.

The product of its digits is 1053696, while the sum is 51.

The spelling of 11877438147 in words is "eleven billion, eight hundred seventy-seven million, four hundred thirty-eight thousand, one hundred forty-seven".