197305278612 has 96 divisors (see below), whose sum is σ = 522159052800. Its totient is φ = 57484121472.

The previous prime is 197305278601. The next prime is 197305278673. The reversal of 197305278612 is 216872503791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6027273 + ... + 6059919.

It is an arithmetic number, because the mean of its divisors is an integer number (5439156800).

Almost surely, 2^197305278612 is an apocalyptic number.

197305278612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197305278612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261079526400).

197305278612 is an abundant number, since it is smaller than the sum of its proper divisors (324853774188).

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

197305278612 is a wasteful number, since it uses less digits than its factorization.

197305278612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34725 (or 34723 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 51.

The spelling of 197305278612 in words is "one hundred ninety-seven billion, three hundred five million, two hundred seventy-eight thousand, six hundred twelve".