197027278436 has 24 divisors (see below), whose sum is σ = 377668924920. Its totient is φ = 89521521152.

The previous prime is 197027278417. The next prime is 197027278439. The reversal of 197027278436 is 634872720791.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11576468836 + 185450809600 = 107594^2 + 430640^2 .

It is not an unprimeable number, because it can be changed into a prime (197027278439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49954235 + ... + 49958178.

It is an arithmetic number, because the mean of its divisors is an integer number (15736205205).

Almost surely, 2^197027278436 is an apocalyptic number.

It is an amenable number.

197027278436 is a deficient number, since it is larger than the sum of its proper divisors (180641646484).

197027278436 is a wasteful number, since it uses less digits than its factorization.

197027278436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99912463 (or 99912461 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 197027278436 in words is "one hundred ninety-seven billion, twenty-seven million, two hundred seventy-eight thousand, four hundred thirty-six".