194785152000001 has 4 divisors (see below), whose sum is σ = 194813953596592. Its totient is φ = 194756350403412.

The previous prime is 194785151999993. The next prime is 194785152000007. The reversal of 194785152000001 is 100000251587491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194785152000001 - 2³ = 194785151999993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194785152000007) 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, 14400788151 + ... + 14400801676.

It is an arithmetic number, because the mean of its divisors is an integer number (48703488399148).

Almost surely, 2^{194785152000001} is an apocalyptic number.

It is an amenable number.

194785152000001 is a deficient number, since it is larger than the sum of its proper divisors (28801596591).

194785152000001 is an equidigital number, since it uses as much as digits as its factorization.

194785152000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28801596590.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 194785152000001 in words is "one hundred ninety-four trillion, seven hundred eighty-five billion, one hundred fifty-two million, one", and thus it is an aban number.