78118363 has 4 divisors (see below), whose sum is σ = 78201288. Its totient is φ = 78035440.

The previous prime is 78118361. The next prime is 78118379. The reversal of 78118363 is 36381187.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78118363 - 2¹ = 78118361 is a prime.

It is a super-2 number, since 2×78118363² = 12204957275599538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78118361) 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 3 ways as a sum of consecutive naturals, for example, 40033 + ... + 41938.

It is an arithmetic number, because the mean of its divisors is an integer number (19550322).

Almost surely, 2^78118363 is an apocalyptic number.

78118363 is a deficient number, since it is larger than the sum of its proper divisors (82925).

78118363 is an equidigital number, since it uses as much as digits as its factorization.

78118363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82924.

The product of its digits is 24192, while the sum is 37.

The square root of 78118363 is about 8838.4593114411. The cubic root of 78118363 is about 427.4818806086.

The spelling of 78118363 in words is "seventy-eight million, one hundred eighteen thousand, three hundred sixty-three".