83778086912 has 96 divisors (see below), whose sum is σ = 180606011040. Its totient is φ = 38622904320.

The previous prime is 83778086881. The next prime is 83778086963. The reversal of 83778086912 is 21968087738.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41825303 + ... + 41827305.

It is an arithmetic number, because the mean of its divisors is an integer number (1881312615).

Almost surely, 2^83778086912 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 83778086912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90303005520).

83778086912 is an abundant number, since it is smaller than the sum of its proper divisors (96827924128).

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

83778086912 is a wasteful number, since it uses less digits than its factorization.

83778086912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 59.

The spelling of 83778086912 in words is "eighty-three billion, seven hundred seventy-eight million, eighty-six thousand, nine hundred twelve".