7770287770266 has 24 divisors (see below), whose sum is σ = 18077812364160. Its totient is φ = 2220082219992.

The previous prime is 7770287770249. The next prime is 7770287770277. The reversal of 7770287770266 is 6620777820777.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7770287770197 and 7770287770206.

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 in 11 ways as a sum of consecutive naturals, for example, 13214774826 + ... + 13214775413.

It is an arithmetic number, because the mean of its divisors is an integer number (753242181840).

Almost surely, 2^{7770287770266} is an apocalyptic number.

7770287770266 is an abundant number, since it is smaller than the sum of its proper divisors (10307524593894).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7770287770266 is a wasteful number, since it uses less digits than its factorization.

7770287770266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26429550258 (or 26429550251 counting only the distinct ones).

The product of its (nonzero) digits is 135531648, while the sum is 66.

The spelling of 7770287770266 in words is "seven trillion, seven hundred seventy billion, two hundred eighty-seven million, seven hundred seventy thousand, two hundred sixty-six".