197725196507 has 2 divisors, whose sum is σ = 197725196508. Its totient is φ = 197725196506.

The previous prime is 197725196423. The next prime is 197725196519. The reversal of 197725196507 is 705691527791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197725196507 - 2¹⁶ = 197725130971 is a prime.

It is not a weakly prime, because it can be changed into another prime (197725196407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98862598253 + 98862598254.

It is an arithmetic number, because the mean of its divisors is an integer number (98862598254).

Almost surely, 2^197725196507 is an apocalyptic number.

197725196507 is a deficient number, since it is larger than the sum of its proper divisors (1).

197725196507 is an equidigital number, since it uses as much as digits as its factorization.

197725196507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8334900, while the sum is 59.

The spelling of 197725196507 in words is "one hundred ninety-seven billion, seven hundred twenty-five million, one hundred ninety-six thousand, five hundred seven".