78535701668240 has 80 divisors (see below), whose sum is σ = 187904033729280. Its totient is φ = 30511190062080.

The previous prime is 78535701668231. The next prime is 78535701668309. The reversal of 78535701668240 is 4286610753587.

78535701668240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 79229405 + ... + 80214524.

It is an arithmetic number, because the mean of its divisors is an integer number (2348800421616).

Almost surely, 2^{78535701668240} is an apocalyptic number.

It is an amenable number.

78535701668240 is an abundant number, since it is smaller than the sum of its proper divisors (109368332061040).

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

78535701668240 is a wasteful number, since it uses less digits than its factorization.

78535701668240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159444120 (or 159444114 counting only the distinct ones).

The product of its (nonzero) digits is 67737600, while the sum is 62.

The spelling of 78535701668240 in words is "seventy-eight trillion, five hundred thirty-five billion, seven hundred one million, six hundred sixty-eight thousand, two hundred forty".