78368275968 has 160 divisors (see below), whose sum is σ = 212423904000. Its totient is φ = 25670025216.

The previous prime is 78368275967. The next prime is 78368276009. The reversal of 78368275968 is 86957286387.

It is a super-2 number, since 2×78368275968² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78368275967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25368568 + ... + 25371656.

It is an arithmetic number, because the mean of its divisors is an integer number (1327649400).

Almost surely, 2^78368275968 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 78368275968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106211952000).

78368275968 is an abundant number, since it is smaller than the sum of its proper divisors (134055628032).

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

78368275968 is a wasteful number, since it uses less digits than its factorization.

78368275968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392 (or 3376 counting only the distinct ones).

The product of its digits is 243855360, while the sum is 69.

The spelling of 78368275968 in words is "seventy-eight billion, three hundred sixty-eight million, two hundred seventy-five thousand, nine hundred sixty-eight".