195747650457 has 16 divisors (see below), whose sum is σ = 262533404928. Its totient is φ = 129730325760.

The previous prime is 195747650429. The next prime is 195747650459. The reversal of 195747650457 is 754056747591.

It is not a de Polignac number, because 195747650457 - 2⁸ = 195747650201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195747650457.

It is not an unprimeable number, because it can be changed into a prime (195747650459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7835328 + ... + 7860270.

It is an arithmetic number, because the mean of its divisors is an integer number (16408337808).

Almost surely, 2^195747650457 is an apocalyptic number.

It is an amenable number.

195747650457 is a deficient number, since it is larger than the sum of its proper divisors (66785754471).

195747650457 is a wasteful number, since it uses less digits than its factorization.

195747650457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40240.

The product of its (nonzero) digits is 37044000, while the sum is 60.

The spelling of 195747650457 in words is "one hundred ninety-five billion, seven hundred forty-seven million, six hundred fifty thousand, four hundred fifty-seven".