97798105456 has 20 divisors (see below), whose sum is σ = 196017755400. Its totient is φ = 47212878272.

The previous prime is 97798105453. The next prime is 97798105481. The reversal of 97798105456 is 65450189779.

It is a junction number, because it is equal to n+sod(n) for n = 97798105394 and 97798105403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97798105453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105385426 + ... + 105386353.

It is an arithmetic number, because the mean of its divisors is an integer number (9800887770).

Almost surely, 2^97798105456 is an apocalyptic number.

It is an amenable number.

97798105456 is an abundant number, since it is smaller than the sum of its proper divisors (98219649944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97798105456 is a wasteful number, since it uses less digits than its factorization.

97798105456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210771816 (or 210771810 counting only the distinct ones).

The product of its (nonzero) digits is 19051200, while the sum is 61.

The spelling of 97798105456 in words is "ninety-seven billion, seven hundred ninety-eight million, one hundred five thousand, four hundred fifty-six".