78045030790 has 32 divisors (see below), whose sum is σ = 143492912640. Its totient is φ = 30548923104.

The previous prime is 78045030779. The next prime is 78045030827. The reversal of 78045030790 is 9703054087.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4768441 + ... + 4784779.

It is an arithmetic number, because the mean of its divisors is an integer number (4484153520).

Almost surely, 2^78045030790 is an apocalyptic number.

78045030790 is a deficient number, since it is larger than the sum of its proper divisors (65447881850).

78045030790 is a wasteful number, since it uses less digits than its factorization.

78045030790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26556.

The product of its (nonzero) digits is 211680, while the sum is 43.

The spelling of 78045030790 in words is "seventy-eight billion, forty-five million, thirty thousand, seven hundred ninety".