78027578250 has 64 divisors (see below), whose sum is σ = 195098986368. Its totient is φ = 20770800000.

The previous prime is 78027578227. The next prime is 78027578303. The reversal of 78027578250 is 5287572087.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78027578193 and 78027578202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337150 + ... + 519350.

It is an arithmetic number, because the mean of its divisors is an integer number (3048421662).

Almost surely, 2^78027578250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78027578250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97549493184).

78027578250 is an abundant number, since it is smaller than the sum of its proper divisors (117071408118).

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

78027578250 is a wasteful number, since it uses less digits than its factorization.

78027578250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182792 (or 182782 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 51.

The spelling of 78027578250 in words is "seventy-eight billion, twenty-seven million, five hundred seventy-eight thousand, two hundred fifty".