196925489658 has 32 divisors (see below), whose sum is σ = 438910792320. Its totient is φ = 65447040960.

The previous prime is 196925489633. The next prime is 196925489669. The reversal of 196925489658 is 856984529691.

196925489658 is a `hidden beast` number, since 1 + 9 + 6 + 92 + 5 + 489 + 6 + 58 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5392438 + ... + 5428833.

It is an arithmetic number, because the mean of its divisors is an integer number (13715962260).

Almost surely, 2^196925489658 is an apocalyptic number.

196925489658 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

196925489658 is an abundant number, since it is smaller than the sum of its proper divisors (241985302662).

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

196925489658 is a wasteful number, since it uses less digits than its factorization.

196925489658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10821619 (or 10821613 counting only the distinct ones).

The product of its digits is 335923200, while the sum is 72.

The spelling of 196925489658 in words is "one hundred ninety-six billion, nine hundred twenty-five million, four hundred eighty-nine thousand, six hundred fifty-eight".