194272069849 has 16 divisors (see below), whose sum is σ = 229747238784. Its totient is φ = 161945856000.

The previous prime is 194272069759. The next prime is 194272069861. The reversal of 194272069849 is 948960272491.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194272069849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194272069249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4476904 + ... + 4520089.

It is an arithmetic number, because the mean of its divisors is an integer number (14359202424).

Almost surely, 2^194272069849 is an apocalyptic number.

It is an amenable number.

194272069849 is a deficient number, since it is larger than the sum of its proper divisors (35475168935).

194272069849 is a wasteful number, since it uses less digits than its factorization.

194272069849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8997168.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The spelling of 194272069849 in words is "one hundred ninety-four billion, two hundred seventy-two million, sixty-nine thousand, eight hundred forty-nine".