97708816871 has 32 divisors (see below), whose sum is σ = 109589011200. Its totient is φ = 86573007360.

The previous prime is 97708816841. The next prime is 97708816879. The reversal of 97708816871 is 17861880779.

It is a cyclic number.

It is not a de Polignac number, because 97708816871 - 2¹⁰ = 97708815847 is a prime.

It is a super-2 number, since 2×97708816871² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97708816879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38481920 + ... + 38484458.

It is an arithmetic number, because the mean of its divisors is an integer number (3424656600).

Almost surely, 2^97708816871 is an apocalyptic number.

97708816871 is a deficient number, since it is larger than the sum of its proper divisors (11880194329).

97708816871 is a wasteful number, since it uses less digits than its factorization.

97708816871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279.

The product of its (nonzero) digits is 9483264, while the sum is 62.

The spelling of 97708816871 in words is "ninety-seven billion, seven hundred eight million, eight hundred sixteen thousand, eight hundred seventy-one".