78045030791 has 8 divisors (see below), whose sum is σ = 96055422624. Its totient is φ = 61749914400.

The previous prime is 78045030779. The next prime is 78045030827. The reversal of 78045030791 is 19703054087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78045030791 - 2²² = 78040836487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78045030731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428818760 + ... + 428818941.

It is an arithmetic number, because the mean of its divisors is an integer number (12006927828).

Almost surely, 2^78045030791 is an apocalyptic number.

78045030791 is a deficient number, since it is larger than the sum of its proper divisors (18010391833).

78045030791 is a wasteful number, since it uses less digits than its factorization.

78045030791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857637721.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 78045030791 in words is "seventy-eight billion, forty-five million, thirty thousand, seven hundred ninety-one".