778327494 has 16 divisors (see below), whose sum is σ = 1779034368. Its totient is φ = 222379272.

The previous prime is 778327493. The next prime is 778327499. The reversal of 778327494 is 494723877.

778327494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778327493) 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, 9265762 + ... + 9265845.

It is an arithmetic number, because the mean of its divisors is an integer number (111189648).

Almost surely, 2^778327494 is an apocalyptic number.

778327494 is an abundant number, since it is smaller than the sum of its proper divisors (1000706874).

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

778327494 is a wasteful number, since it uses less digits than its factorization.

778327494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18531619.

The product of its digits is 2370816, while the sum is 51.

The square root of 778327494 is about 27898.5213586670. The cubic root of 778327494 is about 919.8580018713.

The spelling of 778327494 in words is "seven hundred seventy-eight million, three hundred twenty-seven thousand, four hundred ninety-four".