78105695696 has 80 divisors (see below), whose sum is σ = 183580214400. Its totient is φ = 31425945600.

The previous prime is 78105695687. The next prime is 78105695753. The reversal of 78105695696 is 69659650187.

It is a super-2 number, since 2×78105695696² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 712355 + ... + 814653.

It is an arithmetic number, because the mean of its divisors is an integer number (2294752680).

Almost surely, 2^78105695696 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 78105695696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91790107200).

78105695696 is an abundant number, since it is smaller than the sum of its proper divisors (105474518704).

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

78105695696 is a wasteful number, since it uses less digits than its factorization.

78105695696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102732 (or 102726 counting only the distinct ones).

The product of its (nonzero) digits is 24494400, while the sum is 62.

The spelling of 78105695696 in words is "seventy-eight billion, one hundred five million, six hundred ninety-five thousand, six hundred ninety-six".