778110055 has 8 divisors (see below), whose sum is σ = 939680352. Its totient is φ = 618522528.

The previous prime is 778110007. The next prime is 778110089. The reversal of 778110055 is 550011877.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 778110055 - 2⁹ = 778109543 is a prime.

It is a super-3 number, since 3×778110055³ (a number of 28 digits) contains 333 as substring.

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 778110055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 494827 + ... + 496396.

It is an arithmetic number, because the mean of its divisors is an integer number (117460044).

Almost surely, 2^778110055 is an apocalyptic number.

778110055 is a deficient number, since it is larger than the sum of its proper divisors (161570297).

778110055 is a wasteful number, since it uses less digits than its factorization.

778110055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 991385.

The product of its (nonzero) digits is 9800, while the sum is 34.

The square root of 778110055 is about 27894.6241236551. The cubic root of 778110055 is about 919.7723345765.

The spelling of 778110055 in words is "seven hundred seventy-eight million, one hundred ten thousand, fifty-five".