778278444060 has 384 divisors, whose sum is σ = 2565690753024. Its totient is φ = 174680478720.

The previous prime is 778278444059. The next prime is 778278444079. The reversal of 778278444060 is 60444872877.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 37250937 + ... + 37271823.

It is an arithmetic number, because the mean of its divisors is an integer number (6681486336).

Almost surely, 2^778278444060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 778278444060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1282845376512).

778278444060 is an abundant number, since it is smaller than the sum of its proper divisors (1787412308964).

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

778278444060 is a wasteful number, since it uses less digits than its factorization.

778278444060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21033 (or 21031 counting only the distinct ones).

The product of its (nonzero) digits is 16859136, while the sum is 57.

The spelling of 778278444060 in words is "seven hundred seventy-eight billion, two hundred seventy-eight million, four hundred forty-four thousand, sixty".