197725428936 has 96 divisors (see below), whose sum is σ = 612069144960. Its totient is φ = 56487269376.

The previous prime is 197725428919. The next prime is 197725428961. The reversal of 197725428936 is 639824527791.

197725428936 is a `hidden beast` number, since 1 + 9 + 7 + 7 + 2 + 542 + 89 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9521781 + ... + 9542523.

It is an arithmetic number, because the mean of its divisors is an integer number (6375720260).

Almost surely, 2^197725428936 is an apocalyptic number.

It is an amenable number.

197725428936 is an abundant number, since it is smaller than the sum of its proper divisors (414343716024).

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

197725428936 is a wasteful number, since it uses less digits than its factorization.

197725428936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39675 (or 39668 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 63.

The spelling of 197725428936 in words is "one hundred ninety-seven billion, seven hundred twenty-five million, four hundred twenty-eight thousand, nine hundred thirty-six".