195054901983 has 16 divisors (see below), whose sum is σ = 290179315200. Its totient is φ = 129492510840.

The previous prime is 195054901961. The next prime is 195054901991. The reversal of 195054901983 is 389109450591.

195054901983 is a `hidden beast` number, since 1 + 9 + 5 + 0 + 549 + 0 + 1 + 98 + 3 = 666.

It is not a de Polignac number, because 195054901983 - 2⁶ = 195054901919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195054900983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15107053 + ... + 15119958.

It is an arithmetic number, because the mean of its divisors is an integer number (18136207200).

Almost surely, 2^195054901983 is an apocalyptic number.

195054901983 is a deficient number, since it is larger than the sum of its proper divisors (95124413217).

195054901983 is a wasteful number, since it uses less digits than its factorization.

195054901983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30227259 (or 30227253 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 195054901983 in words is "one hundred ninety-five billion, fifty-four million, nine hundred one thousand, nine hundred eighty-three".