778667332047 has 24 divisors (see below), whose sum is σ = 1146980319408. Its totient is φ = 469524021120.

The previous prime is 778667332031. The next prime is 778667332049. The reversal of 778667332047 is 740233766877.

It is not a de Polignac number, because 778667332047 - 2⁴ = 778667332031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (778667332049) 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, 5372878 + ... + 5515899.

It is an arithmetic number, because the mean of its divisors is an integer number (47790846642).

Almost surely, 2^778667332047 is an apocalyptic number.

778667332047 is a deficient number, since it is larger than the sum of its proper divisors (368312987361).

778667332047 is a wasteful number, since it uses less digits than its factorization.

778667332047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10888999 (or 10888988 counting only the distinct ones).

The product of its (nonzero) digits is 49787136, while the sum is 60.

The spelling of 778667332047 in words is "seven hundred seventy-eight billion, six hundred sixty-seven million, three hundred thirty-two thousand, forty-seven".