195876404081 has 4 divisors (see below), whose sum is σ = 195898893732. Its totient is φ = 195853914432.

The previous prime is 195876404063. The next prime is 195876404107. The reversal of 195876404081 is 180404678591.

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 163769139856 + 32107264225 = 404684^2 + 179185^2 .

It is a cyclic number.

It is not a de Polignac number, because 195876404081 - 2³⁴ = 178696534897 is a prime.

It is a super-2 number, since 2×195876404081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195876404041) 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, 11231756 + ... + 11249181.

It is an arithmetic number, because the mean of its divisors is an integer number (48974723433).

Almost surely, 2^195876404081 is an apocalyptic number.

It is an amenable number.

195876404081 is a deficient number, since it is larger than the sum of its proper divisors (22489651).

195876404081 is an equidigital number, since it uses as much as digits as its factorization.

195876404081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22489650.

The product of its (nonzero) digits is 1935360, while the sum is 53.

The spelling of 195876404081 in words is "one hundred ninety-five billion, eight hundred seventy-six million, four hundred four thousand, eighty-one".