197928132533 has 4 divisors (see below), whose sum is σ = 197945033760. Its totient is φ = 197911231308.

The previous prime is 197928132529. The next prime is 197928132541. The reversal of 197928132533 is 335231829791.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 335231829791 = 1093 ⋅306707987.

It is a cyclic number.

It is not a de Polignac number, because 197928132533 - 2² = 197928132529 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 (197928132553) 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, 8433035 + ... + 8456472.

It is an arithmetic number, because the mean of its divisors is an integer number (49486258440).

Almost surely, 2^197928132533 is an apocalyptic number.

It is an amenable number.

197928132533 is a deficient number, since it is larger than the sum of its proper divisors (16901227).

197928132533 is a wasteful number, since it uses less digits than its factorization.

197928132533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16901226.

The product of its digits is 2449440, while the sum is 53.

The spelling of 197928132533 in words is "one hundred ninety-seven billion, nine hundred twenty-eight million, one hundred thirty-two thousand, five hundred thirty-three".