97218434359 has 4 divisors (see below), whose sum is σ = 97219060920. Its totient is φ = 97217807800.

The previous prime is 97218434279. The next prime is 97218434363. The reversal of 97218434359 is 95343481279.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 97218434359 - 2⁷ = 97218434231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97218434059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110997 + ... + 454705.

It is an arithmetic number, because the mean of its divisors is an integer number (24304765230).

Almost surely, 2^97218434359 is an apocalyptic number.

97218434359 is a deficient number, since it is larger than the sum of its proper divisors (626561).

97218434359 is a wasteful number, since it uses less digits than its factorization.

97218434359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626560.

The product of its digits is 6531840, while the sum is 55.

The spelling of 97218434359 in words is "ninety-seven billion, two hundred eighteen million, four hundred thirty-four thousand, three hundred fifty-nine".