78535464258208 has 24 divisors (see below), whose sum is σ = 154711727134272. Its totient is φ = 39243597049536.

The previous prime is 78535464258179. The next prime is 78535464258217. The reversal of 78535464258208 is 80285246453587.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754168360 + ... + 754272487.

It is an arithmetic number, because the mean of its divisors is an integer number (6446321963928).

Almost surely, 2^{78535464258208} is an apocalyptic number.

It is an amenable number.

78535464258208 is a deficient number, since it is larger than the sum of its proper divisors (76176262876064).

78535464258208 is a wasteful number, since it uses less digits than its factorization.

78535464258208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508442484 (or 1508442476 counting only the distinct ones).

The product of its (nonzero) digits is 516096000, while the sum is 67.

The spelling of 78535464258208 in words is "seventy-eight trillion, five hundred thirty-five billion, four hundred sixty-four million, two hundred fifty-eight thousand, two hundred eight".