780473377856 has 28 divisors (see below), whose sum is σ = 1598711600640. Its totient is φ = 377648407680.

The previous prime is 780473377843. The next prime is 780473377861. The reversal of 780473377856 is 658773374087.

780473377856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 780473377792 and 780473377801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196689896 + ... + 196693863.

It is an arithmetic number, because the mean of its divisors is an integer number (57096842880).

Almost surely, 2^780473377856 is an apocalyptic number.

It is an amenable number.

780473377856 is an abundant number, since it is smaller than the sum of its proper divisors (818238222784).

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

780473377856 is a wasteful number, since it uses less digits than its factorization.

780473377856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393383802 (or 393383792 counting only the distinct ones).

The product of its (nonzero) digits is 165957120, while the sum is 65.

The spelling of 780473377856 in words is "seven hundred eighty billion, four hundred seventy-three million, three hundred seventy-seven thousand, eight hundred fifty-six".