97618345505 has 8 divisors (see below), whose sum is σ = 121181394600. Its totient is φ = 75401756416.

The previous prime is 97618345471. The next prime is 97618345519. The reversal of 97618345505 is 50554381679.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 13713112609 + 83905232896 = 117103^2 + 289664^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97618345505 is a prime.

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, 336614840 + ... + 336615129.

It is an arithmetic number, because the mean of its divisors is an integer number (15147674325).

Almost surely, 2^97618345505 is an apocalyptic number.

It is an amenable number.

97618345505 is a deficient number, since it is larger than the sum of its proper divisors (23563049095).

97618345505 is a wasteful number, since it uses less digits than its factorization.

97618345505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673230003.

The product of its (nonzero) digits is 4536000, while the sum is 53.

The spelling of 97618345505 in words is "ninety-seven billion, six hundred eighteen million, three hundred forty-five thousand, five hundred five".