778418412 has 24 divisors (see below), whose sum is σ = 1824317376. Its totient is φ = 258328848.

The previous prime is 778418411. The next prime is 778418441. The reversal of 778418412 is 214814877.

It is not an unprimeable number, because it can be changed into a prime (778418411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140158 + ... + 145605.

It is an arithmetic number, because the mean of its divisors is an integer number (76013224).

Almost surely, 2^778418412 is an apocalyptic number.

It is an amenable number.

778418412 is an abundant number, since it is smaller than the sum of its proper divisors (1045898964).

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

778418412 is a wasteful number, since it uses less digits than its factorization.

778418412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285997 (or 285995 counting only the distinct ones).

The product of its digits is 100352, while the sum is 42.

The square root of 778418412 is about 27900.1507522809. The cubic root of 778418412 is about 919.8938172979.

The spelling of 778418412 in words is "seven hundred seventy-eight million, four hundred eighteen thousand, four hundred twelve".