78318065374 has 12 divisors (see below), whose sum is σ = 124794011664. Its totient is φ = 36855559904.

The previous prime is 78318065369. The next prime is 78318065377. The reversal of 78318065374 is 47356081387.

It is a super-2 number, since 2×78318065374² (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 (78318065377) 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, 67748614 + ... + 67749769.

It is an arithmetic number, because the mean of its divisors is an integer number (10399500972).

Almost surely, 2^78318065374 is an apocalyptic number.

78318065374 is a deficient number, since it is larger than the sum of its proper divisors (46475946290).

78318065374 is a wasteful number, since it uses less digits than its factorization.

78318065374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135498419 (or 135498402 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 78318065374 in words is "seventy-eight billion, three hundred eighteen million, sixty-five thousand, three hundred seventy-four".