195954545954 has 4 divisors (see below), whose sum is σ = 293931818934. Its totient is φ = 97977272976.

The previous prime is 195954545953. The next prime is 195954545959. The reversal of 195954545954 is 459545459591.

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

It can be written as a sum of positive squares in only one way, i.e., 195094473025 + 860072929 = 441695^2 + 29327^2 .

It is not an unprimeable number, because it can be changed into a prime (195954545953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48988636487 + ... + 48988636490.

Almost surely, 2^195954545954 is an apocalyptic number.

195954545954 is a deficient number, since it is larger than the sum of its proper divisors (97977272980).

195954545954 is an equidigital number, since it uses as much as digits as its factorization.

195954545954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97977272979.

The product of its digits is 145800000, while the sum is 65.

The spelling of 195954545954 in words is "one hundred ninety-five billion, nine hundred fifty-four million, five hundred forty-five thousand, nine hundred fifty-four".