97682177819 has 2 divisors, whose sum is σ = 97682177820. Its totient is φ = 97682177818.

The previous prime is 97682177759. The next prime is 97682177861. The reversal of 97682177819 is 91877128679.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 97682177819 - 2⁸ = 97682177563 is a prime.

It is a super-2 number, since 2×97682177819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (97682147819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48841088909 + 48841088910.

It is an arithmetic number, because the mean of its divisors is an integer number (48841088910).

Almost surely, 2^97682177819 is an apocalyptic number.

97682177819 is a deficient number, since it is larger than the sum of its proper divisors (1).

97682177819 is an equidigital number, since it uses as much as digits as its factorization.

97682177819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344, while the sum is 65.

The spelling of 97682177819 in words is "ninety-seven billion, six hundred eighty-two million, one hundred seventy-seven thousand, eight hundred nineteen".