791801772067 has 2 divisors, whose sum is σ = 791801772068. Its totient is φ = 791801772066.

The previous prime is 791801772043. The next prime is 791801772079. The reversal of 791801772067 is 760277108197.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791801772067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 791801771999 and 791801772017.

It is not a weakly prime, because it can be changed into another prime (791801772007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395900886033 + 395900886034.

It is an arithmetic number, because the mean of its divisors is an integer number (395900886034).

Almost surely, 2^791801772067 is an apocalyptic number.

791801772067 is a deficient number, since it is larger than the sum of its proper divisors (1).

791801772067 is an equidigital number, since it uses as much as digits as its factorization.

791801772067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2074464, while the sum is 55.

The spelling of 791801772067 in words is "seven hundred ninety-one billion, eight hundred one million, seven hundred seventy-two thousand, sixty-seven".