97599531943 has 4 divisors (see below), whose sum is σ = 97601706328. Its totient is φ = 97597357560.

The previous prime is 97599531937. The next prime is 97599531961. The reversal of 97599531943 is 34913599579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34913599579 = 6299 ⋅5542721.

It is a cyclic number.

It is not a de Polignac number, because 97599531943 - 2²¹ = 97597434791 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 (97599531923) 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, 1018413 + ... + 1110118.

It is an arithmetic number, because the mean of its divisors is an integer number (24400426582).

Almost surely, 2^97599531943 is an apocalyptic number.

97599531943 is a deficient number, since it is larger than the sum of its proper divisors (2174385).

97599531943 is a wasteful number, since it uses less digits than its factorization.

97599531943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174384.

The product of its digits is 41334300, while the sum is 64.

The spelling of 97599531943 in words is "ninety-seven billion, five hundred ninety-nine million, five hundred thirty-one thousand, nine hundred forty-three".