97706530539 has 6 divisors (see below), whose sum is σ = 141131655236. Its totient is φ = 65137687020.

The previous prime is 97706530531. The next prime is 97706530549. The reversal of 97706530539 is 93503560779.

97706530539 is a `hidden beast` number, since 9 + 7 + 70 + 6 + 5 + 30 + 539 = 666.

It is not a de Polignac number, because 97706530539 - 2³ = 97706530531 is a prime.

It is a super-2 number, since 2×97706530539² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97706530531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5428140577 + ... + 5428140594.

Almost surely, 2^97706530539 is an apocalyptic number.

97706530539 is a deficient number, since it is larger than the sum of its proper divisors (43425124697).

97706530539 is a wasteful number, since it uses less digits than its factorization.

97706530539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10856281177 (or 10856281174 counting only the distinct ones).

The product of its (nonzero) digits is 5358150, while the sum is 54.

The spelling of 97706530539 in words is "ninety-seven billion, seven hundred six million, five hundred thirty thousand, five hundred thirty-nine".