78507346582 has 16 divisors (see below), whose sum is σ = 135611384832. Its totient is φ = 33389165160.

The previous prime is 78507346537. The next prime is 78507346583. The reversal of 78507346582 is 28564370587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78507346583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21401478 + ... + 21405145.

It is an arithmetic number, because the mean of its divisors is an integer number (8475711552).

Almost surely, 2^78507346582 is an apocalyptic number.

78507346582 is a deficient number, since it is larger than the sum of its proper divisors (57104038250).

78507346582 is a wasteful number, since it uses less digits than its factorization.

78507346582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42806763.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 78507346582 in words is "seventy-eight billion, five hundred seven million, three hundred forty-six thousand, five hundred eighty-two".