78850511267616 has 384 divisors, whose sum is σ = 266087949281280. Its totient is φ = 22480541107200.

The previous prime is 78850511267597. The next prime is 78850511267653. The reversal of 78850511267616 is 61676211505887.

It is a happy number.

78850511267616 is a `hidden beast` number, since 7 + 8 + 8 + 5 + 0 + 5 + 1 + 1 + 2 + 6 + 7 + 616 = 666.

78850511267616 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10377391 + ... + 16290833.

It is an arithmetic number, because the mean of its divisors is an integer number (692937367920).

Almost surely, 2^{78850511267616} 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 78850511267616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133043974640640).

78850511267616 is an abundant number, since it is smaller than the sum of its proper divisors (187237438013664).

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

78850511267616 is a wasteful number, since it uses less digits than its factorization.

78850511267616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5913557 (or 5913543 counting only the distinct ones).

The product of its (nonzero) digits is 33868800, while the sum is 63.

The spelling of 78850511267616 in words is "seventy-eight trillion, eight hundred fifty billion, five hundred eleven million, two hundred sixty-seven thousand, six hundred sixteen".