197486570916 has 72 divisors (see below), whose sum is σ = 508159491840. Its totient is φ = 64655224704.

The previous prime is 197486570903. The next prime is 197486570923. The reversal of 197486570916 is 619075684791.

197486570916 is a `hidden beast` number, since 1 + 9 + 7 + 48 + 6 + 570 + 9 + 16 = 666.

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, 470881 + ... + 785303.

It is an arithmetic number, because the mean of its divisors is an integer number (7057770720).

Almost surely, 2^197486570916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197486570916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254079745920).

197486570916 is an abundant number, since it is smaller than the sum of its proper divisors (310672920924).

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

197486570916 is a wasteful number, since it uses less digits than its factorization.

197486570916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314745 (or 314740 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 197486570916 in words is "one hundred ninety-seven billion, four hundred eighty-six million, five hundred seventy thousand, nine hundred sixteen".