2768193791 has 4 divisors (see below), whose sum is σ = 3019847784. Its totient is φ = 2516539800.

The previous prime is 2768193787. The next prime is 2768193803. The reversal of 2768193791 is 1973918672.

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 2768193791 - 2² = 2768193787 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 (2768193731) 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, 125826980 + ... + 125827001.

It is an arithmetic number, because the mean of its divisors is an integer number (754961946).

Almost surely, 2^2768193791 is an apocalyptic number.

2768193791 is a deficient number, since it is larger than the sum of its proper divisors (251653993).

2768193791 is a wasteful number, since it uses less digits than its factorization.

2768193791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251653992.

The product of its digits is 1143072, while the sum is 53.

The square root of 2768193791 is about 52613.6274267418. The cubic root of 2768193791 is about 1404.1025564420.

The spelling of 2768193791 in words is "two billion, seven hundred sixty-eight million, one hundred ninety-three thousand, seven hundred ninety-one".