78546768 has 20 divisors (see below), whose sum is σ = 202912608. Its totient is φ = 26182240.

The previous prime is 78546763. The next prime is 78546773. The reversal of 78546768 is 86764587.

It is an interprime number because it is at equal distance from previous prime (78546763) and next prime (78546773).

It is a self number, because there is not a number n which added to its sum of digits gives 78546768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78546763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 818148 + ... + 818243.

Almost surely, 2^78546768 is an apocalyptic number.

It is an amenable number.

78546768 is an abundant number, since it is smaller than the sum of its proper divisors (124365840).

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

78546768 is a wasteful number, since it uses less digits than its factorization.

78546768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636402 (or 1636396 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 78546768 is about 8862.6614512797. The cubic root of 78546768 is about 428.2619004391.

The spelling of 78546768 in words is "seventy-eight million, five hundred forty-six thousand, seven hundred sixty-eight".