194151995458012 has 12 divisors (see below), whose sum is σ = 340872721669480. Its totient is φ = 96759789266736.

The previous prime is 194151995457997. The next prime is 194151995458021. The reversal of 194151995458012 is 210854599151491.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79052114187 + ... + 79052116642.

Almost surely, 2^{194151995458012} is an apocalyptic number.

It is an amenable number.

194151995458012 is a deficient number, since it is larger than the sum of its proper divisors (146720726211468).

194151995458012 is a wasteful number, since it uses less digits than its factorization.

194151995458012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158104231140 (or 158104231138 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 64.

The spelling of 194151995458012 in words is "one hundred ninety-four trillion, one hundred fifty-one billion, nine hundred ninety-five million, four hundred fifty-eight thousand, twelve".