78334147368 has 24 divisors (see below), whose sum is σ = 212154982650. Its totient is φ = 26111382432.

The previous prime is 78334147361. The next prime is 78334147379. The reversal of 78334147368 is 86374143387.

78334147368 is a `hidden beast` number, since 7 + 83 + 34 + 1 + 473 + 68 = 666.

It can be written as a sum of positive squares in only one way, i.e., 78333933924 + 213444 = 279882^2 + 462^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×78334147368² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78334147361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 543987063 + ... + 543987206.

Almost surely, 2^78334147368 is an apocalyptic number.

It is an amenable number.

78334147368 is an abundant number, since it is smaller than the sum of its proper divisors (133820835282).

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

78334147368 is a wasteful number, since it uses less digits than its factorization.

78334147368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087974281 (or 1087974274 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 78334147368 in words is "seventy-eight billion, three hundred thirty-four million, one hundred forty-seven thousand, three hundred sixty-eight".