194145241975 has 12 divisors (see below), whose sum is σ = 241524279304. Its totient is φ = 154810271520.

The previous prime is 194145241943. The next prime is 194145242023. The reversal of 194145241975 is 579142541491.

It is not a de Polignac number, because 194145241975 - 2⁵ = 194145241943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12640224 + ... + 12655573.

Almost surely, 2^194145241975 is an apocalyptic number.

194145241975 is a deficient number, since it is larger than the sum of its proper divisors (47379037329).

194145241975 is a wasteful number, since it uses less digits than its factorization.

194145241975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25296114 (or 25296109 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The spelling of 194145241975 in words is "one hundred ninety-four billion, one hundred forty-five million, two hundred forty-one thousand, nine hundred seventy-five".