78533168204436 has 96 divisors (see below), whose sum is σ = 201934236542976. Its totient is φ = 23556191760000.

The previous prime is 78533168204371. The next prime is 78533168204453. The reversal of 78533168204436 is 63440286133587.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 78533168204436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50739081 + ... + 52263951.

It is an arithmetic number, because the mean of its divisors is an integer number (2103481630656).

Almost surely, 2^{78533168204436} 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 78533168204436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100967118271488).

78533168204436 is an abundant number, since it is smaller than the sum of its proper divisors (123401068338540).

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

78533168204436 is a wasteful number, since it uses less digits than its factorization.

78533168204436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528853 (or 1528851 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 60.

The spelling of 78533168204436 in words is "seventy-eight trillion, five hundred thirty-three billion, one hundred sixty-eight million, two hundred four thousand, four hundred thirty-six".