97866392401 has 4 divisors (see below), whose sum is σ = 97937673012. Its totient is φ = 97795111792.

The previous prime is 97866392381. The next prime is 97866392413. The reversal of 97866392401 is 10429366879.

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 63362958400 + 34503434001 = 251720^2 + 185751^2 .

It is a cyclic number.

It is not a de Polignac number, because 97866392401 - 2¹¹ = 97866390353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97866392461) 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, 35638246 + ... + 35640991.

It is an arithmetic number, because the mean of its divisors is an integer number (24484418253).

Almost surely, 2^97866392401 is an apocalyptic number.

It is an amenable number.

97866392401 is a deficient number, since it is larger than the sum of its proper divisors (71280611).

97866392401 is a wasteful number, since it uses less digits than its factorization.

97866392401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71280610.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 97866392401 in words is "ninety-seven billion, eight hundred sixty-six million, three hundred ninety-two thousand, four hundred one".