78030780500 has 48 divisors (see below), whose sum is σ = 170514699264. Its totient is φ = 31194826400.

The previous prime is 78030780463. The next prime is 78030780523. The reversal of 78030780500 is 508703087.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 868697 + ... + 954303.

It is an arithmetic number, because the mean of its divisors is an integer number (3552389568).

Almost surely, 2^78030780500 is an apocalyptic number.

It is an amenable number.

78030780500 is an abundant number, since it is smaller than the sum of its proper divisors (92483918764).

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

78030780500 is a wasteful number, since it uses less digits than its factorization.

78030780500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87449 (or 87437 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 78030780500 in words is "seventy-eight billion, thirty million, seven hundred eighty thousand, five hundred".