777266960 has 40 divisors (see below), whose sum is σ = 1809627480. Its totient is φ = 310479872.

The previous prime is 777266927. The next prime is 777266969. The reversal of 777266960 is 69662777.

It can be written as a sum of positive squares in 4 ways, for example, as 120472576 + 656794384 = 10976^2 + 25628^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 777266899 and 777266908.

It is not an unprimeable number, because it can be changed into a prime (777266969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55556 + ... + 68124.

It is an arithmetic number, because the mean of its divisors is an integer number (45240687).

Almost surely, 2^777266960 is an apocalyptic number.

It is an amenable number.

777266960 is an abundant number, since it is smaller than the sum of its proper divisors (1032360520).

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

777266960 is a wasteful number, since it uses less digits than its factorization.

777266960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13355 (or 13349 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 50.

The square root of 777266960 is about 27879.5078866181. The cubic root of 777266960 is about 919.4400183902.

The spelling of 777266960 in words is "seven hundred seventy-seven million, two hundred sixty-six thousand, nine hundred sixty".