19532608097 has 4 divisors (see below), whose sum is σ = 19532893380. Its totient is φ = 19532322816.

The previous prime is 19532608079. The next prime is 19532608127. The reversal of 19532608097 is 79080623591.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 1425138001 + 18107470096 = 37751^2 + 134564^2 .

It is a cyclic number.

It is not a de Polignac number, because 19532608097 - 2⁶ = 19532608033 is a prime.

It is a super-2 number, since 2×19532608097² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19532608597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28529 + ... + 199697.

It is an arithmetic number, because the mean of its divisors is an integer number (4883223345).

It is a Poulet number, since it divides 2^19532608096-1.

Almost surely, 2^19532608097 is an apocalyptic number.

19532608097 is the 114113-rd pentagonal number.

It is an amenable number.

19532608097 is a deficient number, since it is larger than the sum of its proper divisors (285283).

19532608097 is a wasteful number, since it uses less digits than its factorization.

19532608097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285282.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 19532608097 in words is "nineteen billion, five hundred thirty-two million, six hundred eight thousand, ninety-seven".