778260411 has 24 divisors (see below), whose sum is σ = 1142144640. Its totient is φ = 510592896.

The previous prime is 778260403. The next prime is 778260433. The reversal of 778260411 is 114062877.

It is not a de Polignac number, because 778260411 - 2³ = 778260403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (778262411) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 176445 + ... + 180801.

It is an arithmetic number, because the mean of its divisors is an integer number (47589360).

Almost surely, 2^778260411 is an apocalyptic number.

778260411 is a deficient number, since it is larger than the sum of its proper divisors (363884229).

778260411 is a wasteful number, since it uses less digits than its factorization.

778260411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675 (or 4672 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 778260411 is about 27897.3190647417. The cubic root of 778260411 is about 919.8315740040.

The spelling of 778260411 in words is "seven hundred seventy-eight million, two hundred sixty thousand, four hundred eleven".