97790706571 has 2 divisors, whose sum is σ = 97790706572. Its totient is φ = 97790706570.

The previous prime is 97790706539. The next prime is 97790706593. The reversal of 97790706571 is 17560709779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97790706571 - 2⁵ = 97790706539 is a prime.

It is not a weakly prime, because it can be changed into another prime (97790709571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48895353285 + 48895353286.

It is an arithmetic number, because the mean of its divisors is an integer number (48895353286).

Almost surely, 2^97790706571 is an apocalyptic number.

97790706571 is a deficient number, since it is larger than the sum of its proper divisors (1).

97790706571 is an equidigital number, since it uses as much as digits as its factorization.

97790706571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5834430, while the sum is 58.

The spelling of 97790706571 in words is "ninety-seven billion, seven hundred ninety million, seven hundred six thousand, five hundred seventy-one".