78845749050 has 96 divisors (see below), whose sum is σ = 200646157824. Its totient is φ = 20477952000.

The previous prime is 78845749019. The next prime is 78845749061. The reversal of 78845749050 is 5094754887.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3722490 + ... + 3743610.

It is an arithmetic number, because the mean of its divisors is an integer number (2090064144).

Almost surely, 2^78845749050 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78845749050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100323078912).

78845749050 is an abundant number, since it is smaller than the sum of its proper divisors (121800408774).

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

78845749050 is a wasteful number, since it uses less digits than its factorization.

78845749050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784 (or 21779 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 78845749050 in words is "seventy-eight billion, eight hundred forty-five million, seven hundred forty-nine thousand, fifty".