195545750399 has 2 divisors, whose sum is σ = 195545750400. Its totient is φ = 195545750398.

The previous prime is 195545750371. The next prime is 195545750447. The reversal of 195545750399 is 993057545591.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195545750399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195545750359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97772875199 + 97772875200.

It is an arithmetic number, because the mean of its divisors is an integer number (97772875200).

Almost surely, 2^195545750399 is an apocalyptic number.

195545750399 is a deficient number, since it is larger than the sum of its proper divisors (1).

195545750399 is an equidigital number, since it uses as much as digits as its factorization.

195545750399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38272500, while the sum is 62.

The spelling of 195545750399 in words is "one hundred ninety-five billion, five hundred forty-five million, seven hundred fifty thousand, three hundred ninety-nine".