78034986240 has 144 divisors (see below), whose sum is σ = 249336931200. Its totient is φ = 20799922176.

The previous prime is 78034986217. The next prime is 78034986257. The reversal of 78034986240 is 4268943087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14239821 + ... + 14245299.

Almost surely, 2^78034986240 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 78034986240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124668465600).

78034986240 is an abundant number, since it is smaller than the sum of its proper divisors (171301944960).

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

78034986240 is a wasteful number, since it uses less digits than its factorization.

78034986240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212 (or 9198 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 78034986240 in words is "seventy-eight billion, thirty-four million, nine hundred eighty-six thousand, two hundred forty".