97111908829 has 4 divisors (see below), whose sum is σ = 104582055676. Its totient is φ = 89641761984.

The previous prime is 97111908821. The next prime is 97111908853. The reversal of 97111908829 is 92880911179.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57467116729 + 39644792100 = 239723^2 + 199110^2 .

It is a cyclic number.

It is not a de Polignac number, because 97111908829 - 2³ = 97111908821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97111908829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97111908821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3735073404 + ... + 3735073429.

It is an arithmetic number, because the mean of its divisors is an integer number (26145513919).

Almost surely, 2^97111908829 is an apocalyptic number.

It is an amenable number.

97111908829 is a deficient number, since it is larger than the sum of its proper divisors (7470146847).

97111908829 is a wasteful number, since it uses less digits than its factorization.

97111908829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470146846.

The product of its (nonzero) digits is 653184, while the sum is 55.

The spelling of 97111908829 in words is "ninety-seven billion, one hundred eleven million, nine hundred eight thousand, eight hundred twenty-nine".