78468468 has 24 divisors (see below), whose sum is σ = 197177568. Its totient is φ = 24144096.

The previous prime is 78468463. The next prime is 78468469. The reversal of 78468468 is 86486487.

It is a self number, because there is not a number n which added to its sum of digits gives 78468468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251346 + ... + 251657.

It is an arithmetic number, because the mean of its divisors is an integer number (8215732).

Almost surely, 2^78468468 is an apocalyptic number.

78468468 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

78468468 is an abundant number, since it is smaller than the sum of its proper divisors (118709100).

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

78468468 is a wasteful number, since it uses less digits than its factorization.

78468468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503023 (or 503021 counting only the distinct ones).

The product of its digits is 2064384, while the sum is 51.

The square root of 78468468 is about 8858.2429408997. The cubic root of 78468468 is about 428.1195476458.

The spelling of 78468468 in words is "seventy-eight million, four hundred sixty-eight thousand, four hundred sixty-eight".