11918339078 has 4 divisors (see below), whose sum is σ = 17877508620. Its totient is φ = 5959169538.

The previous prime is 11918339021. The next prime is 11918339093. The reversal of 11918339078 is 87093381911.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87093381911 = 269 ⋅323767219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2979584768 + ... + 2979584771.

It is an arithmetic number, because the mean of its divisors is an integer number (4469377155).

Almost surely, 2^11918339078 is an apocalyptic number.

11918339078 is a deficient number, since it is larger than the sum of its proper divisors (5959169542).

11918339078 is an equidigital number, since it uses as much as digits as its factorization.

11918339078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5959169541.

The product of its (nonzero) digits is 326592, while the sum is 50.

The spelling of 11918339078 in words is "eleven billion, nine hundred eighteen million, three hundred thirty-nine thousand, seventy-eight".