7780814455255 has 8 divisors (see below), whose sum is σ = 9348490270224. Its totient is φ = 6216976281600.

The previous prime is 7780814455247. The next prime is 7780814455291. The reversal of 7780814455255 is 5525544180877.

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

It is not a de Polignac number, because 7780814455255 - 2³ = 7780814455247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7780814455193 and 7780814455202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959405866 + ... + 959413975.

It is an arithmetic number, because the mean of its divisors is an integer number (1168561283778).

Almost surely, 2^{7780814455255} is an apocalyptic number.

7780814455255 is a deficient number, since it is larger than the sum of its proper divisors (1567675814969).

7780814455255 is a wasteful number, since it uses less digits than its factorization.

7780814455255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918820657.

The product of its (nonzero) digits is 62720000, while the sum is 61.

The spelling of 7780814455255 in words is "seven trillion, seven hundred eighty billion, eight hundred fourteen million, four hundred fifty-five thousand, two hundred fifty-five".