78852437776 has 120 divisors (see below), whose sum is σ = 187685933760. Its totient is φ = 31910457600.

The previous prime is 78852437767. The next prime is 78852437801. The reversal of 78852437776 is 67773425887.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4624146 + ... + 4641166.

It is an arithmetic number, because the mean of its divisors is an integer number (1564049448).

Almost surely, 2^78852437776 is an apocalyptic number.

78852437776 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78852437776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93842966880).

78852437776 is an abundant number, since it is smaller than the sum of its proper divisors (108833495984).

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

78852437776 is a wasteful number, since it uses less digits than its factorization.

78852437776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17373 (or 17360 counting only the distinct ones).

The product of its digits is 110638080, while the sum is 64.

The spelling of 78852437776 in words is "seventy-eight billion, eight hundred fifty-two million, four hundred thirty-seven thousand, seven hundred seventy-six".