778304380050 has 120 divisors (see below), whose sum is σ = 2162857568256. Its totient is φ = 207516699360.

The previous prime is 778304380027. The next prime is 778304380057. The reversal of 778304380050 is 50083403877.

778304380050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 778304379978 and 778304380005.

It is not an unprimeable number, because it can be changed into a prime (778304380057) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 42365967 + ... + 42384333.

Almost surely, 2^778304380050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 778304380050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1081428784128).

778304380050 is an abundant number, since it is smaller than the sum of its proper divisors (1384553188206).

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

778304380050 is a wasteful number, since it uses less digits than its factorization.

778304380050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28854 (or 28840 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 778304380050 in words is "seven hundred seventy-eight billion, three hundred four million, three hundred eighty thousand, fifty".