97798423747 has 2 divisors, whose sum is σ = 97798423748. Its totient is φ = 97798423746.

The previous prime is 97798423733. The next prime is 97798423757. The reversal of 97798423747 is 74732489779.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97798423747 - 2¹⁵ = 97798390979 is a prime.

It is not a weakly prime, because it can be changed into another prime (97798423757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48899211873 + 48899211874.

It is an arithmetic number, because the mean of its divisors is an integer number (48899211874).

Almost surely, 2^97798423747 is an apocalyptic number.

97798423747 is a deficient number, since it is larger than the sum of its proper divisors (1).

97798423747 is an equidigital number, since it uses as much as digits as its factorization.

97798423747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 149361408, while the sum is 67.

The spelling of 97798423747 in words is "ninety-seven billion, seven hundred ninety-eight million, four hundred twenty-three thousand, seven hundred forty-seven".