791815061 has 2 divisors, whose sum is σ = 791815062. Its totient is φ = 791815060.

The previous prime is 791815021. The next prime is 791815097. The reversal of 791815061 is 160518197.

791815061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 783664036 + 8151025 = 27994^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 791815061 - 2¹⁴ = 791798677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791815021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395907530 + 395907531.

It is an arithmetic number, because the mean of its divisors is an integer number (395907531).

Almost surely, 2^791815061 is an apocalyptic number.

It is an amenable number.

791815061 is a deficient number, since it is larger than the sum of its proper divisors (1).

791815061 is an equidigital number, since it uses as much as digits as its factorization.

791815061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 38.

The square root of 791815061 is about 28139.2086064978. The cubic root of 791815061 is about 925.1409810927.

The spelling of 791815061 in words is "seven hundred ninety-one million, eight hundred fifteen thousand, sixty-one".