97776067771 has 2 divisors, whose sum is σ = 97776067772. Its totient is φ = 97776067770.

The previous prime is 97776067757. The next prime is 97776067819. The reversal of 97776067771 is 17776067779.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 97776067771 - 2¹⁹ = 97775543483 is a prime.

It is not a weakly prime, because it can be changed into another prime (97776067721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48888033885 + 48888033886.

It is an arithmetic number, because the mean of its divisors is an integer number (48888033886).

Almost surely, 2^97776067771 is an apocalyptic number.

97776067771 is a deficient number, since it is larger than the sum of its proper divisors (1).

97776067771 is an equidigital number, since it uses as much as digits as its factorization.

97776067771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38118276, while the sum is 64.

The spelling of 97776067771 in words is "ninety-seven billion, seven hundred seventy-six million, sixty-seven thousand, seven hundred seventy-one".