97826146787873 has 4 divisors (see below), whose sum is σ = 111801310614720. Its totient is φ = 83850982961028.

The previous prime is 97826146787813. The next prime is 97826146787881. The reversal of 97826146787873 is 37878764162879.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97826146787873 - 2¹² = 97826146783777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97826146787791 and 97826146787800.

It is not an unprimeable number, because it can be changed into a prime (97826146787813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6987581913413 + ... + 6987581913426.

It is an arithmetic number, because the mean of its divisors is an integer number (27950327653680).

Almost surely, 2^{97826146787873} is an apocalyptic number.

It is an amenable number.

97826146787873 is a deficient number, since it is larger than the sum of its proper divisors (13975163826847).

97826146787873 is a wasteful number, since it uses less digits than its factorization.

97826146787873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13975163826846.

The product of its digits is 9559130112, while the sum is 83.

The spelling of 97826146787873 in words is "ninety-seven trillion, eight hundred twenty-six billion, one hundred forty-six million, seven hundred eighty-seven thousand, eight hundred seventy-three".