195710778461713 has 4 divisors (see below), whose sum is σ = 196957343929780. Its totient is φ = 194464212993648.

The previous prime is 195710778461701. The next prime is 195710778461741. The reversal of 195710778461713 is 317164877017591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 86368454532369 + 109342323929344 = 9293463^2 + 10456688^2 .

It is a cyclic number.

It is not a de Polignac number, because 195710778461713 - 2²⁵ = 195710744907281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195710778464713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 623282733798 + ... + 623282734111.

It is an arithmetic number, because the mean of its divisors is an integer number (49239335982445).

Almost surely, 2^{195710778461713} is an apocalyptic number.

It is an amenable number.

195710778461713 is a deficient number, since it is larger than the sum of its proper divisors (1246565468067).

195710778461713 is a wasteful number, since it uses less digits than its factorization.

195710778461713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246565468066.

The product of its (nonzero) digits is 62233920, while the sum is 67.

The spelling of 195710778461713 in words is "one hundred ninety-five trillion, seven hundred ten billion, seven hundred seventy-eight million, four hundred sixty-one thousand, seven hundred thirteen".