97623564985 has 8 divisors (see below), whose sum is σ = 118355992776. Its totient is φ = 77293708800.

The previous prime is 97623564977. The next prime is 97623565003. The reversal of 97623564985 is 58946532679.

It can be written as a sum of positive squares in 4 ways, for example, as 552062016 + 97071502969 = 23496^2 + 311563^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97623564985 - 2³ = 97623564977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100642366 + ... + 100643335.

It is an arithmetic number, because the mean of its divisors is an integer number (14794499097).

Almost surely, 2^97623564985 is an apocalyptic number.

It is an amenable number.

97623564985 is a deficient number, since it is larger than the sum of its proper divisors (20732427791).

97623564985 is a wasteful number, since it uses less digits than its factorization.

97623564985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201285803.

The product of its digits is 97977600, while the sum is 64.

The spelling of 97623564985 in words is "ninety-seven billion, six hundred twenty-three million, five hundred sixty-four thousand, nine hundred eighty-five".