78518468 has 24 divisors (see below), whose sum is σ = 159614784. Its totient is φ = 33098400.

The previous prime is 78518467. The next prime is 78518471. The reversal of 78518468 is 86481587.

It is a happy number.

It is a super-3 number, since 3×78518468³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (78518467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21278 + ... + 24693.

It is an arithmetic number, because the mean of its divisors is an integer number (6650616).

Almost surely, 2^78518468 is an apocalyptic number.

It is an amenable number.

78518468 is an abundant number, since it is smaller than the sum of its proper divisors (81096316).

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

78518468 is a wasteful number, since it uses less digits than its factorization.

78518468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46043 (or 46041 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 78518468 is about 8861.0647215783. The cubic root of 78518468 is about 428.2104607345.

The spelling of 78518468 in words is "seventy-eight million, five hundred eighteen thousand, four hundred sixty-eight".