78823782470250 has 256 divisors, whose sum is σ = 222419199974400. Its totient is φ = 20653605504000.

The previous prime is 78823782470221. The next prime is 78823782470269. The reversal of 78823782470250 is 5207428732887.

78823782470250 is a `hidden beast` number, since 7 + 8 + 8 + 2 + 37 + 82 + 470 + 2 + 50 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 398063266 + ... + 398261234.

It is an arithmetic number, because the mean of its divisors is an integer number (868824999900).

Almost surely, 2^{78823782470250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78823782470250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111209599987200).

78823782470250 is an abundant number, since it is smaller than the sum of its proper divisors (143595417504150).

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

78823782470250 is a wasteful number, since it uses less digits than its factorization.

78823782470250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199023 (or 199007 counting only the distinct ones).

The product of its (nonzero) digits is 84295680, while the sum is 63.

The spelling of 78823782470250 in words is "seventy-eight trillion, eight hundred twenty-three billion, seven hundred eighty-two million, four hundred seventy thousand, two hundred fifty".