197928132534 has 48 divisors (see below), whose sum is σ = 468258667344. Its totient is φ = 59923281600.

The previous prime is 197928132529. The next prime is 197928132541. The reversal of 197928132534 is 435231829791.

197928132534 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 281 + 325 + 34 = 666.

It is a super-2 number, since 2×197928132534² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240877 + ... + 673704.

It is an arithmetic number, because the mean of its divisors is an integer number (9755388903).

Almost surely, 2^197928132534 is an apocalyptic number.

197928132534 is an abundant number, since it is smaller than the sum of its proper divisors (270330534810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197928132534 is a wasteful number, since it uses less digits than its factorization.

197928132534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915693 (or 915690 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 197928132534 in words is "one hundred ninety-seven billion, nine hundred twenty-eight million, one hundred thirty-two thousand, five hundred thirty-four".