197279217089064 has 96 divisors (see below), whose sum is σ = 582872979255840. Its totient is φ = 59781317846400.

The previous prime is 197279217089047. The next prime is 197279217089117. The reversal of 197279217089064 is 460980712972791.

197279217089064 is a `hidden beast` number, since 1 + 9 + 7 + 279 + 217 + 0 + 89 + 0 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 197279217088983 and 197279217089001.

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, 254277894 + ... + 255052554.

It is an arithmetic number, because the mean of its divisors is an integer number (6071593533915).

Almost surely, 2^{197279217089064} is an apocalyptic number.

It is an amenable number.

197279217089064 is an abundant number, since it is smaller than the sum of its proper divisors (385593762166776).

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

197279217089064 is a wasteful number, since it uses less digits than its factorization.

197279217089064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096231 (or 1096224 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 72.

The spelling of 197279217089064 in words is "one hundred ninety-seven trillion, two hundred seventy-nine billion, two hundred seventeen million, eighty-nine thousand, sixty-four".