197528473331 has 32 divisors (see below), whose sum is σ = 232258295808. Its totient is φ = 164491891200.

The previous prime is 197528473327. The next prime is 197528473349. The reversal of 197528473331 is 133374825791.

It is not a de Polignac number, because 197528473331 - 2² = 197528473327 is a prime.

It is a super-2 number, since 2×197528473331² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is not an unprimeable number, because it can be changed into a prime (197528473381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77430506 + ... + 77433056.

It is an arithmetic number, because the mean of its divisors is an integer number (7258071744).

Almost surely, 2^197528473331 is an apocalyptic number.

197528473331 is a deficient number, since it is larger than the sum of its proper divisors (34729822477).

197528473331 is a wasteful number, since it uses less digits than its factorization.

197528473331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571.

The product of its digits is 3810240, while the sum is 53.

The spelling of 197528473331 in words is "one hundred ninety-seven billion, five hundred twenty-eight million, four hundred seventy-three thousand, three hundred thirty-one".