97622438065 has 4 divisors (see below), whose sum is σ = 117146925684. Its totient is φ = 78097950448.

The previous prime is 97622438009. The next prime is 97622438119. The reversal of 97622438065 is 56083422679.

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 60539618304 + 37082819761 = 246048^2 + 192569^2 .

It is a cyclic number.

It is not a de Polignac number, because 97622438065 - 2⁷ = 97622437937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9762243802 + ... + 9762243811.

It is an arithmetic number, because the mean of its divisors is an integer number (29286731421).

Almost surely, 2^97622438065 is an apocalyptic number.

It is an amenable number.

97622438065 is a deficient number, since it is larger than the sum of its proper divisors (19524487619).

97622438065 is a wasteful number, since it uses less digits than its factorization.

97622438065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19524487618.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 97622438065 in words is "ninety-seven billion, six hundred twenty-two million, four hundred thirty-eight thousand, sixty-five".