11977478314 has 4 divisors (see below), whose sum is σ = 17966217474. Its totient is φ = 5988739156.

The previous prime is 11977478281. The next prime is 11977478323. The reversal of 11977478314 is 41387477911.

11977478314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 11931848289 + 45630025 = 109233^2 + 6755^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2994369577 + ... + 2994369580.

Almost surely, 2^11977478314 is an apocalyptic number.

11977478314 is a deficient number, since it is larger than the sum of its proper divisors (5988739160).

11977478314 is an equidigital number, since it uses as much as digits as its factorization.

11977478314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5988739159.

The product of its digits is 1185408, while the sum is 52.

The spelling of 11977478314 in words is "eleven billion, nine hundred seventy-seven million, four hundred seventy-eight thousand, three hundred fourteen".