1918826985814 has 4 divisors (see below), whose sum is σ = 2878240478724. Its totient is φ = 959413492906.

The previous prime is 1918826985799. The next prime is 1918826985821. The reversal of 1918826985814 is 4185896288191.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 479706746452 + ... + 479706746455.

It is an arithmetic number, because the mean of its divisors is an integer number (719560119681).

Almost surely, 2^{1918826985814} is an apocalyptic number.

1918826985814 is a deficient number, since it is larger than the sum of its proper divisors (959413492910).

1918826985814 is an equidigital number, since it uses as much as digits as its factorization.

1918826985814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959413492909.

The product of its digits is 79626240, while the sum is 70.

The spelling of 1918826985814 in words is "one trillion, nine hundred eighteen billion, eight hundred twenty-six million, nine hundred eighty-five thousand, eight hundred fourteen".