78000516 has 48 divisors (see below), whose sum is σ = 220610880. Its totient is φ = 23636160.

The previous prime is 78000499. The next prime is 78000541. The reversal of 78000516 is 61500087.

78000516 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

78000516 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 78000516.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31641 + ... + 34016.

It is an arithmetic number, because the mean of its divisors is an integer number (4596060).

Almost surely, 2^78000516 is an apocalyptic number.

It is an amenable number.

78000516 is an abundant number, since it is smaller than the sum of its proper divisors (142610364).

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

78000516 is a wasteful number, since it uses less digits than its factorization.

78000516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65681 (or 65673 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 78000516 is about 8831.7900790270. The cubic root of 78000516 is about 427.2668103437.

The spelling of 78000516 in words is "seventy-eight million, five hundred sixteen", and thus it is an aban number.