30768146791 has 4 divisors (see below), whose sum is σ = 31829117400. Its totient is φ = 29707176184.

The previous prime is 30768146743. The next prime is 30768146803. The reversal of 30768146791 is 19764186703.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30768146791 - 2²⁷ = 30633929063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30768146701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530485261 + ... + 530485318.

It is an arithmetic number, because the mean of its divisors is an integer number (7957279350).

Almost surely, 2^30768146791 is an apocalyptic number.

30768146791 is a deficient number, since it is larger than the sum of its proper divisors (1060970609).

30768146791 is a wasteful number, since it uses less digits than its factorization.

30768146791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060970608.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 30768146791 in words is "thirty billion, seven hundred sixty-eight million, one hundred forty-six thousand, seven hundred ninety-one".