97618345508 has 12 divisors (see below), whose sum is σ = 170840115852. Its totient is φ = 48806883840.

The previous prime is 97618345471. The next prime is 97618345519. The reversal of 97618345508 is 80554381679.

It can be written as a sum of positive squares in 2 ways, for example, as 16662162724 + 80956182784 = 129082^2 + 284528^2 .

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, 474413 + ... + 648308.

It is an arithmetic number, because the mean of its divisors is an integer number (14236676321).

Almost surely, 2^97618345508 is an apocalyptic number.

It is an amenable number.

97618345508 is a deficient number, since it is larger than the sum of its proper divisors (73221770344).

97618345508 is a wasteful number, since it uses less digits than its factorization.

97618345508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144462 (or 1144460 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 97618345508 in words is "ninety-seven billion, six hundred eighteen million, three hundred forty-five thousand, five hundred eight".