197806492328 has 8 divisors (see below), whose sum is σ = 370887173130. Its totient is φ = 98903246160.

The previous prime is 197806492327. The next prime is 197806492379. The reversal of 197806492328 is 823294608791.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 122193591844 + 75612900484 = 349562^2 + 274978^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (197806492327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12362905763 + ... + 12362905778.

Almost surely, 2^197806492328 is an apocalyptic number.

It is an amenable number.

197806492328 is a deficient number, since it is larger than the sum of its proper divisors (173080680802).

197806492328 is a wasteful number, since it uses less digits than its factorization.

197806492328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24725811547 (or 24725811543 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 197806492328 in words is "one hundred ninety-seven billion, eight hundred six million, four hundred ninety-two thousand, three hundred twenty-eight".