78914207716608 has 864 divisors, whose sum is σ = 247394541219840. Its totient is φ = 22313100902400.

The previous prime is 78914207716607. The next prime is 78914207716697. The reversal of 78914207716608 is 80661770241987.

It is a super-2 number, since 2×78914207716608² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78914207716607) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 57982517848 + ... + 57982519208.

It is an arithmetic number, because the mean of its divisors is an integer number (286336274560).

Almost surely, 2^{78914207716608} 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 78914207716608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123697270609920).

78914207716608 is an abundant number, since it is smaller than the sum of its proper divisors (168480333503232).

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

78914207716608 is a wasteful number, since it uses less digits than its factorization.

78914207716608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 56899584, while the sum is 66.

The spelling of 78914207716608 in words is "seventy-eight trillion, nine hundred fourteen billion, two hundred seven million, seven hundred sixteen thousand, six hundred eight".