6780226545791 has 4 divisors (see below), whose sum is σ = 6780683356872. Its totient is φ = 6779769734712.

The previous prime is 6780226545767. The next prime is 6780226545809. The reversal of 6780226545791 is 1975456220876.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6780226545791 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 (6780226545731) 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, 228383276 + ... + 228412961.

It is an arithmetic number, because the mean of its divisors is an integer number (1695170839218).

Almost surely, 2^{6780226545791} is an apocalyptic number.

6780226545791 is a deficient number, since it is larger than the sum of its proper divisors (456811081).

6780226545791 is a wasteful number, since it uses less digits than its factorization.

6780226545791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456811080.

The product of its (nonzero) digits is 50803200, while the sum is 62.

The spelling of 6780226545791 in words is "six trillion, seven hundred eighty billion, two hundred twenty-six million, five hundred forty-five thousand, seven hundred ninety-one".