78148741668 has 48 divisors (see below), whose sum is σ = 193128909120. Its totient is φ = 24510198784.

The previous prime is 78148741663. The next prime is 78148741669. The reversal of 78148741668 is 86614784187.

It is a super-2 number, since 2×78148741668² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78148741663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679663 + ... + 786281.

It is an arithmetic number, because the mean of its divisors is an integer number (4023518940).

Almost surely, 2^78148741668 is an apocalyptic number.

It is an amenable number.

78148741668 is an abundant number, since it is smaller than the sum of its proper divisors (114980167452).

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

78148741668 is a wasteful number, since it uses less digits than its factorization.

78148741668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110236 (or 110234 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 60.

The spelling of 78148741668 in words is "seventy-eight billion, one hundred forty-eight million, seven hundred forty-one thousand, six hundred sixty-eight".