97574538239 has 4 divisors (see below), whose sum is σ = 97575163560. Its totient is φ = 97573912920.

The previous prime is 97574538233. The next prime is 97574538377. The reversal of 97574538239 is 93283547579.

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, and also an emirpimes, since its reverse is a distinct semiprime: 93283547579 = 857 ⋅108848947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97574538239 is a prime.

It is a super-2 number, since 2×97574538239² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97574538233) 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, 136109 + ... + 462249.

It is an arithmetic number, because the mean of its divisors is an integer number (24393790890).

Almost surely, 2^97574538239 is an apocalyptic number.

97574538239 is a deficient number, since it is larger than the sum of its proper divisors (625321).

97574538239 is a wasteful number, since it uses less digits than its factorization.

97574538239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625320.

The product of its digits is 57153600, while the sum is 62.

The spelling of 97574538239 in words is "ninety-seven billion, five hundred seventy-four million, five hundred thirty-eight thousand, two hundred thirty-nine".